Eco Friendly Candle Wick Materials: 2026 UK Guide

eco friendly candle wick materials: The 2026 UK Guide

3 wick types provide the strongest starting points for an eco-conscious candle: cotton, responsibly sourced wood, and paper-stabilised cotton. However, no wick material is universally best. The right choice must match the wax, fragrance, colour, jar diameter, and intended burn profile. For most natural-wax container candles, a well-sized cotton wick is a practical starting point. Wooden wicks offer a distinctive flame and can be renewable when responsibly sourced. Some paper-core or paper-filament designs also suit natural waxes. They must be assessed by their complete composition, not their name alone.[1][2] Mattys Candles uses zinc-free and lead-free wicks. Our standard candles pair them with our own coconut and rapeseed wax blend. Nothing else is added to that wax blend. We chose it for a slow, clean fragrance release. This guide explains what wick materials do, how to compare them, and why testing matters. It also separates defensible environmental benefits from vague green claims. > Direct answer: The leading eco friendly candle wick materials are cotton and responsibly sourced wood. Paper-stabilised cotton is another useful option. Avoid synthetic and metal-core constructions when sustainability is the goal. Always test the wick with the actual wax and vessel.[1][2] 

What makes a candle wick eco-friendly? 4 areas matter when assessing a wick: material, sourcing, treatment, and burn performance. A natural-looking wick is not automatically sustainable.

Start with its complete material composition. Cotton, wood, and paper can be renewable and biodegradable. That advantage becomes less clear if a wick includes synthetic fibres, metal cores, or undisclosed coatings. Next, examine where the material came from. Responsibly sourced wood is more defensible than wood with no chain-of-custody information. Cotton also varies according to farming, processing, bleaching, and chemical treatment. The wick must then work efficiently in the finished candle. An unsuitable wick may produce an unstable flame, excess soot, tunnelling, or an overheated container. A renewable material used in a poorly designed candle is not a good environmental outcome. A useful assessment asks these questions:

• Is the main material cotton, wood, paper, or another natural fibre? – Does the wick contain metal or synthetic structural components? – Are its coatings and treatments disclosed? – Is there credible sourcing information? – Does it burn correctly in the intended wax and jar? – Can the supplier provide technical guidance or testing information? – Does the final candle use materials efficiently? The UK government advises consumers to follow product safety instructions and never leave burning candles unattended.[3] Material choice never replaces safe candle design or careful use.

How does a candle wick work? 3 linked processes keep a candle burning: melting, capillary flow, and vaporisation. The flame does not simply burn the solid wax beneath it.

Heat from the flame melts nearby wax. The liquid wax travels upward through narrow spaces in the wick. This movement is capillary action. Heat then turns the liquid fuel into vapour near the wick tip, where combustion occurs. The wick therefore acts as both a fuel transporter and a flame regulator. Its braid, thickness, stiffness, treatments, and raw material affect how quickly fuel reaches the flame. A wick carrying too little fuel may create a small flame. It can leave a narrow melt pool and cause tunnelling. A wick carrying too much may create a large flame, deep melt pool, excess heat, smoke, or soot. This explains why material alone cannot identify the best wick. Two cotton wicks may differ in braid, thread count, treatment, and stiffness. They can behave very differently in the same jar.

Why wax type changes wick performance

1 wick can behave differently when moved between two wax blends. Wax hardness, melting behaviour, additives, fragrance, and colour all affect fuel flow. Vegetable waxes are not interchangeable. Rapeseed, coconut, and soy-based formulations can differ between suppliers. Even blends with similar ingredient names may require different wick sizes. Fragrance also changes the system. Its chemical composition can affect viscosity and combustion. Dye, botanical inclusions, and other additives can alter performance too. Decorative inclusions near a flame may create additional hazards and should not be assumed safe.

Why jar diameter matters

2 candles using identical wax may need different wicks when their internal diameters differ. A wider vessel usually requires a broader melt pool. That does not mean the thickest wick is automatically correct. Wick design must balance melt-pool development, container temperature, flame stability, soot, and candle life. Technical suppliers provide wick ranges rather than one universal size. They also recommend testing in the actual candle formulation and container.[2][4]

Cotton candle wicks

100% cotton is a common starting material for natural-wax container candles. Cotton wicks are widely available, biodegradable as a raw fibre, and produced in many braid patterns and sizes.[1][5] Cotton fibres create channels that carry melted wax towards the flame. The braid controls stiffness and fuel delivery. Some designs curl while burning, which can help move the wick tip into a hotter part of the flame. Cotton is useful because makers can select from many series and sizes. That flexibility does not make every cotton wick equally sustainable or equally suitable.

Benefits of cotton wicks

3 practical advantages are availability, sizing choice, and compatibility with many wax systems. Cotton is familiar to both suppliers and makers. Potential benefits include:

• Natural fibre as the main component
• Biodegradability when free from persistent additions
• Many available braids and diameters
• Predictable starting guidance from established suppliers
• Suitability for many container and pillar formulations
• A steady flame after correct testing

Cotton wicks can work well with coconut and rapeseed wax. See our guide to coconut and rapeseed wax candle making supplies for more detail on that blend.

Limits of cotton wicks

4 variables can distinguish one cotton wick from another: braid, core, treatment, and coating. The word “cotton” does not disclose the full construction. A wick may use cotton around a different core. It may be bleached, stiffened, primed, or coated. These choices can be functional, but buyers should seek clear information rather than assuming purity. Terms such as “natural,” “clean,” and “eco” need evidence. Ask whether the wick is entirely cotton or merely cotton-covered. Check whether the coating is disclosed. Certification can help, but it must relate to the relevant product and claim. Claims that cotton always burns without soot are too broad. Any candle can smoke when its wick is oversized, too long, disturbed by draughts, or paired badly with its fuel.

When cotton is the strongest starting point

1 correctly sized cotton wick is often the simplest first test for a natural-wax container candle. Its broad sizing range makes systematic testing easier. Cotton is especially practical when a maker values a conventional flame and does not want a crackling effect. It is also useful when several adjacent sizes are available for controlled comparison. The final choice still belongs to the tested candle, not the material label.

Wooden candle wicks

2 sourcing and performance questions determine whether a wooden wick is a credible eco-conscious option. The wood should be responsibly sourced, and the finished candle must burn safely and efficiently.[1][5] Wooden wicks create a broad flame and may produce a gentle crackle. They are available as single-ply, multi-ply, booster, and tube designs. These formats do not behave identically. A credible supplier should identify the wood or sourcing standard where possible. FSC certification is one recognised way to support responsible forestry claims. The certification must apply to the relevant product or supply chain. 

Benefits of wooden wicks

3 distinguishing features are a horizontal flame, structural rigidity, and an optional crackling sound. Their visual character appeals to buyers seeking something different from braided fibre. Potential benefits include:

• Renewable material when responsibly sourced
• Biodegradable wood as the main component
• A broad and distinctive flame
• No braided fibre structure
• Different formats for varied wax and vessel combinations

Wood alone does not prove responsible sourcing. Transparent origin information matters.

Limits of wooden wicks

4 common problems are weak relighting, tunnelling, excess flame, and sensitivity to trimming. Wooden wicks often have a narrower working range than buyers expect. A wick cut too short may struggle to relight. One left too tall may produce an unstable flame. Wax composition and fragrance can change how readily fuel moves through the wood. Wooden wicks can also be less forgiving during development. A successful result may require trials with width, thickness, booster configuration, and clip height. If a candle develops an incomplete melt pool, our guide explains how to fix candle tunneling. Tunnelling does not prove that wooden wicks are poor. It shows that the complete candle needs review.

Are wooden wicks more sustainable than cotton? 2 materials cannot be ranked responsibly without information about origin, processing, transport, and candle performance. Cotton and wood each have strengths and trade-offs.

Responsibly sourced wood may be renewable and biodegradable. Cotton is also plant-based and biodegradable, while offering more sizing options. Farming and forestry impacts vary. The defensible choice is the traceable material that performs safely in the intended candle. A universal environmental winner cannot be established from the material name alone.

Paper-core and paper-filament candle wicks

2 broad constructions appear in this category: paper-cored cotton and paper-filament reinforced wicks. They can provide a natural-fibre option when their complete composition is transparent.[6][7] Paper is often used to add stiffness. This can help the wick remain upright and provide a consistent structure without a metal core. Some commercial wick families combine cotton with paper threads or a paper core. These wicks should not be described as pure paper unless they are. “Paper-stabilised cotton” is often a clearer description.

Benefits of paper-stabilised cotton

3 potential benefits are structural support, natural-fibre content, and compatibility with selected vegetable waxes. Some UK suppliers position these designs for natural-wax candle making.[6][7] They may offer:

• Stiffness without a metal core
• Cotton and paper as the principal materials
• Several sizes for container testing
• Consistent geometry during pouring and burning
• A useful alternative to conventional flat-braided cotton

Supplier descriptions of Wedo ECO products identify cotton and paper-based construction.[6][7] That supports the material description. It does not prove that one wick family will outperform every alternative.

Limits of paper-based wicks

1 paper component does not make the whole candle environmentally preferable. Coatings, cotton sourcing, packaging, performance, and disposal still matter. Paper-stabilised designs can also create different flame profiles from ordinary cotton braids. They require the same careful burn testing as any other wick. Choose them because their disclosed construction and tested performance suit the candle. Do not choose them only because “ECO” appears in a product name.

Is hemp an eco-friendly candle wick material? 1 niche natural-fibre option is hemp, but it is not the main UK standard. Evidence and supplier guidance are stronger for cotton, wood, and paper-stabilised cotton.

Hemp is plant-based and can be biodegradable. However, retail hemp wick is often intended for uses outside container-candle manufacturing. It may also be coated in beeswax. That coating matters to vegan buyers. It also changes how the wick handles fuel and burns. Uncoated hemp requires development work, like any less-established wick system. Hemp should therefore be framed as an alternative for controlled experiments. It should not be presented as the universal sustainable answer.

Which wick materials should eco-conscious buyers avoid? 2 broad groups deserve caution: metal-core and synthetic-core wicks. Their added materials weaken claims based on renewable fibres and biodegradability.[5][8]

Avoiding a material does not mean every product containing it creates the same exposure. It means that simpler, transparent natural-fibre choices are easier to justify when sustainability is the goal.

Zinc and other metal-core wicks

1 metal core can provide structural support, but it prevents the wick from being an all-natural fibre product. Zinc-core designs should not be marketed as a leading sustainable choice. Lead-core candle wicks have a serious historical safety context. UK product-safety rules require candles placed on the market to be safe, while businesses remain responsible for assessing hazards.[3] “Lead-free” alone is not a complete environmental claim. A wick could be lead-free while still containing zinc, nylon, or undisclosed treatments. Ask for the full composition. Mattys Candles uses zinc-free and lead-free wicks. That is a precise product statement, not a claim that this feature alone makes a candle sustainable.

Nylon and synthetic supports

100% natural-fibre construction is easier to assess than a wick containing undisclosed polymers. Nylon and other synthetic supports originate from non-renewable feedstocks and are not biodegradable like untreated cotton, paper, or wood. Synthetic fibres may serve a technical purpose. However, they are difficult to reconcile with a claim centred on renewable, biodegradable wick materials. Look for explicit composition details. “Cotton wick” may describe the outer braid without identifying its core.

Undisclosed coatings and treatments

3 details should be disclosed where possible: core, coating, and fibre blend. Lack of transparency makes sustainability claims hard to verify. Priming a wick can improve manufacturing and ignition. The relevant question is what material was used. A vegetable-wax coating differs from paraffin or beeswax, especially for customers avoiding petroleum or animal-derived ingredients. Do not assume “pre-waxed” identifies the coating. Ask the supplier.

How to choose the correct wick for your candle

5 variables should guide the first test: wax, vessel, fragrance, colour, and wick series. A generic size chart is only a starting point.[2][4] Follow this process:

1. Record the vessel’s internal diameter at the intended fill level. 2. Identify the exact wax or wax blend. 3. Record fragrance and dye levels. 4. Choose a wick series compatible with that application. 5. Test adjacent sizes in otherwise identical candles. 6. Cure each candle consistently before testing. 7. Burn in repeated sessions under controlled conditions. 8. Record flame, melt pool, soot, wick condition, and container heat. 9. Repeat the test across the candle’s full usable life. A first burn cannot prove lifetime performance. The vessel grows emptier during use, and retained heat can alter later burns.

Begin with supplier guidance

3 adjacent wick sizes create a more useful first trial than one guessed size. Use the supplier’s chart, then test one suggested size and its neighbours. Supplier charts are not guarantees. Their results may use a different wax, fragrance, vessel, cure period, or room environment. Even so, they offer a more defensible starting point than visual guesswork. Established UK candle suppliers explicitly organise wick recommendations by candle application and advise testing.[2][4]

Keep the variables controlled

1 changed variable per test makes the result easier to interpret. If wax, fragrance, wick, and vessel all change together, the cause of any difference becomes unclear. Label every sample. Record batch details and wick size. Photograph each burn at consistent intervals. Stop any test that becomes unsafe. The purpose is not to force a preferred natural material to work. It is to find a transparent, suitable material that works safely in that formulation.

How to run a useful candle burn test

4 observations matter throughout testing: flame behaviour, melt pool, residue, and vessel heat. No single observation provides the full answer. Place test candles on a stable, heat-resistant surface. Keep them away from draughts, children, pets, and combustible items. Follow the wax, fragrance, vessel, and wick suppliers’ safety guidance. During each session, record:

• The time since lighting
• Flame height and movement
• Visible smoke or soot
• Wick curl or mushrooming
• Melt-pool width and depth
• Wax left on the vessel wall
• Relighting behaviour
• Vessel temperature, using a suitable method
• Any unusual odour, cracking, or movement

Never continue an unsafe test merely to complete a data sheet.

Signs that a wick may be too small

4 warning signs are a weak flame, narrow melt pool, repeated extinguishing, and persistent tunnelling. These symptoms may also reflect poor trimming or incompatible wax. A full melt pool should not be treated as a race. Forcing rapid edge-to-edge melting can over-wick the candle and create problems later. Review the complete pattern across several sessions. If the candle remains underpowered, test the next suitable wick size or another compatible series.

Signs that a wick may be too large

5 warning signs are an oversized flame, deep melt pool, smoke, heavy mushrooming, and excessive vessel heat. Stop the test if safety becomes uncertain. An overpowered wick consumes wax quickly. It may also reduce candle life and deposit soot. Moving to a smaller size can help, but a different wick series may provide better control.

Why trimming matters

1 practical user action can change burn behaviour: trimming the wick as directed. Excess wick length can enlarge the flame and increase smoke. Instructions must suit the tested product. Wooden and cotton wicks may need different trim lengths. Makers should validate their directions instead of copying a generic number. Consumers should follow the label supplied with the candle.

Mattys Candles: verified materials and workshop practice

2018 marks the start of our small-batch hand-pouring in Nottingham. Small batches give us control over fragrance distribution, wax finish, and quality checks. We use our own coconut and rapeseed wax blend, with nothing else added to that wax. It is soy-free, paraffin-free, palm-free, beeswax-free, and non-GMO. It involves no bee-harming pesticides. We avoid paraffin because of indoor-air-quality concerns. Our candle wicks are zinc-free and lead-free. Every fragrance is tested for cold and hot scent throw. A standard 220g candle burns for approximately 45 hours when used correctly. We do not claim that one wick material is best for every candle. Wick performance depends on the finished system. The wax, fragrance, jar, and wick must work together. > Verified Mattys facts > > – Hand-poured in small batches in Nottingham since 2018 > – Own-blend coconut and rapeseed wax, with nothing else added > – Soy-free, paraffin-free, palm-free, and beeswax-free wax blend > – Non-GMO and no bee-harming pesticides > – Zinc-free and lead-free candle wicks > – Every fragrance tested for cold and hot scent throw > – Standard 220g candles burn approximately 45 hours when used correctly > – Wax melts use approximately 10% fragrance oil and set for 24 hours > > Wholesale figures: No verified MOQ or price ladder was supplied for this guide, so none is stated. This is the evidence available for our products. It does not support invented certifications, universal burn claims, or comparisons presented as laboratory research.

Does the wick make the whole candle sustainable? 4 other areas matter alongside the wick: wax, fragrance, container, and packaging. A natural wick cannot cancel out weak choices elsewhere.[5][8]

Consider the whole product:

• Wax: Is its composition disclosed? Does it contain paraffin, palm, or animal-derived materials? – Fragrance: Are safety documents and allergen labels available where required? – Container: Is it durable, reusable, recyclable, or refillable? – Packaging: Is unnecessary material avoided? Can local recycling systems accept it? – Manufacturing: Does the candle perform efficiently without wasting wax? – Sourcing: Are broad environmental claims supported by evidence? Mattys Candles uses a coconut and rapeseed own-blend wax with nothing else added. It is soy-free, paraffin-free, palm-free, beeswax-free, and non-GMO. Wick selection is still important. It controls whether that wax is used steadily and safely. It is one part of the design, not the complete sustainability story.

Eco-friendly UK candles: what buyers should look for

6 details create a useful buying checklist: wick, wax, sourcing, burn guidance, packaging, and evidence. Eco-conscious buyers should favour specific disclosures over broad green language. Mattys Candles is a small UK candle brand making hand-poured products in Nottingham. We use our own coconut and rapeseed wax blend and zinc-free, lead-free wicks. Every fragrance is tested for cold and hot scent throw. When comparing eco-friendly candle brands in the UK, ask:

• What is the wick made from? – Does it contain a metal or synthetic core? – What wax is used? – Are sourcing statements specific? – Are burn instructions supplied? – Does the maker avoid unsupported claims? – Is the container reusable or recyclable locally? – Is the product made in batches with quality checks? Buyers looking for handmade UK candles should also check where production happens. “Designed in Britain” does not necessarily mean poured here. Our candles have been hand-poured in Nottingham since 2018. For buyers seeking luxury scented candles online in the UK, luxury should mean more than packaging. Material disclosure, tested scent performance, and clear care instructions are stronger indicators of quality.

Candle wick materials comparison

3 leading options cover most eco-conscious searches: cotton, responsible wood, and paper-stabilised cotton. The table compares their typical characteristics without declaring a universal winner. | Wick material | Main environmental strength | Main limitation | Useful starting application | |—|—|—|—| | Cotton | Natural and biodegradable fibre | Treatments and cores may be undisclosed | Many natural-wax container candles | | Responsibly sourced wood | Renewable wood with traceable forestry | Sensitive to sizing, trimming, and wax choice | Candles designed for a broad flame or crackle | | Paper-stabilised cotton | Natural-fibre structure without a metal core | The complete coating and composition still matter | Selected vegetable-wax containers | | Hemp | Plant-based niche alternative | Less mainstream guidance and frequent beeswax coating | Controlled development trials | | Zinc or metal core | Structural rigidity | Not an all-natural, biodegradable construction | Not preferred for an eco-led specification | | Nylon or synthetic core | Technical reinforcement | Fossil-derived and not readily biodegradable | Not preferred for an eco-led specification | This table describes materials. It does not replace supplier documentation or full-life burn testing.

Common green claims that need closer scrutiny

5 words often need supporting detail: natural, clean, non-toxic, sustainable, and eco. None has enough precision on its own.

“Natural wick”

1 natural outer fibre may conceal a different core. Ask for the complete construction and coating.

“Clean-burning wick”

4 conditions affect visible soot: wick size, trim length, airflow, and fuel formulation. No material can guarantee a soot-free candle under every condition.

“Non-toxic candle”

1 absolute safety claim is rarely useful without defining substance, dose, and use conditions. Safer wording identifies actual materials and provides care instructions.

“Sustainable wood wick”

2 pieces of evidence improve this claim: responsible sourcing and chain-of-custody information. The fact that a wick is wooden is not enough.

“Lead-free wick”

1 excluded metal does not describe the rest of the wick. Buyers should still check for zinc, synthetic fibres, and undisclosed coatings.

Wax melts as a flameless alternative

0 candle wicks are needed when using wax melts. Melts release fragrance in an electric or tealight warmer rather than through a wick. They can feel stronger than candles because fragrance releases quickly when warmed. Replace a melt once its scent fades. We make our wax melts by mixing approximately 10% fragrance oil into wax. We pour the mixture into rubber moulds and let it set for 24 hours. Use a suitable warmer. Do not overfill it or add water. Never leave it unattended. Let the wax cool before swapping it. A tealight warmer still uses a flame beneath the dish. “Flameless wax melt” describes the melt itself, not every warming method.

Candle fragrance and pets

1 veterinary conversation is more useful than a universal internet claim about pet safety. Animals differ by species, health, exposure, and sensitivity. We are candle makers, not vets. An animal’s nose is far more sensitive than ours. In our view, forcing strong scent on an animal unnecessarily is not kind. Consult your vet if you have concerns. Ventilate the room and let pets move away from fragrance. Never place flames or hot wax within their reach.

How to dispose of candle wicks and containers

3 materials may remain after a candle ends: wick, wax, and container. Their disposal routes differ by local council. Small pieces of untreated cotton, paper, or wood may be biodegradable as materials. However, a used wick also contains wax, fragrance residue, and possibly a metal sustainer tab. That mixed item may not suit household composting. Do not place an item in compost simply because one component is natural. Check your local authority’s rules. Clean containers only when the maker confirms it is safe to do so. Never pour wax down a sink. It can cool and cause a blockage. Reuse can extend a jar’s life, but only for suitable purposes. A used candle vessel should not automatically become food storage.

Final verdict

3 wick categories deserve priority in a 2026 UK comparison: cotton, responsibly sourced wood, and paper-stabilised cotton. Each can support an eco-conscious candle when its composition is transparent and its performance is tested.[1][2][5] Cotton is the most versatile starting point for many container candles. Wood offers a distinctive burn and a credible renewable option when responsibly sourced. Paper-stabilised cotton can provide natural-fibre rigidity without a metal core. Avoid describing zinc, nylon, or other synthetic-core constructions as leading sustainable choices. Treat hemp as a niche alternative, not the mainstream standard. Most importantly, do not choose a wick in isolation. Match it to the exact wax, fragrance, and vessel. Test it across the candle’s full life. Then assess the complete product, including wax, packaging, and container. Explore Mattys Candles products to compare our small-batch approach, coconut and rapeseed wax blend, and tested fragrance performance.

Frequently asked questions

What are the best eco friendly candle wick materials? 3 strong starting options are cotton, responsibly sourced wood, and paper-stabilised cotton. No option is best for every candle.

The wax, fragrance, and vessel diameter determine which wick performs correctly.

Are cotton candle wicks biodegradable? 100% untreated cotton is biodegradable as a raw fibre. A finished wick may include coatings, treatments, cores, or a metal sustainer.

Check its complete composition before making disposal claims.

Are wooden candle wicks eco-friendly? 2 conditions strengthen a wooden wick’s environmental case: responsible sourcing and good burn performance. Look for credible forestry information and test the wick in the finished candle.

Are paper-core wicks sustainable? 1 paper core can replace metal reinforcement in some wick constructions. Paper-stabilised cotton can be a credible natural-fibre option.

Its coating, sourcing, and tested performance still matter.

Are hemp wicks better than cotton wicks? 0 universal evidence establishes hemp as better than cotton for every candle. Hemp is a niche alternative.

Cotton has broader UK supplier guidance and more established sizing options.

Should zinc-core wicks be considered eco-friendly? 1 zinc core means the wick is not an all-natural fibre construction. Natural-fibre or responsibly sourced wooden options are easier to justify when sustainability is the priority.

Does lead-free mean a wick is sustainable? 1 excluded material cannot prove complete sustainability. A lead-free wick may still contain zinc, synthetic fibres, or undisclosed coatings.

Review the whole composition and sourcing.

Can one wick size work with every natural wax? 0 wick sizes are guaranteed to suit every natural wax and jar. Begin with supplier guidance.

Then test adjacent sizes in the exact wax, fragrance, and vessel.[2][4]

Do eco-friendly wicks produce no soot? 0 wick materials can guarantee a soot-free burn in every setting. Wick size, trimming, formulation, airflow, and user behaviour all affect combustion.

What wicks does Mattys Candles use? 2 metals are specifically excluded from our wicks: zinc and lead. We pair our wicks with our own coconut and rapeseed wax blend.

Every fragrance is tested for cold and hot scent throw.

Sources

[1] Candle Shack, “Eco-Friendly Candle Making: Sustainable Supplies for the Conscious Candlepreneur”: https://candle-shack.co.uk/blogs/all-blogs/eco-friendly-candle-making-sustainable-supplies-for-the-conscious-candlepreneur [2] Supplies for Candles, candle wick ranges and selection guidance: https://www.suppliesforcandles.co.uk/product-category/candle-wicks/ [3] GOV.UK, product safety advice for businesses: https://www.gov.uk/guidance/product-safety-advice-for-businesses [4] Candle Shack, ECO Series candle wicks: https://candle-shack.co.uk/collections/eco-series-candle-wicks [5] Northern Ireland Candle Supplies, “Best Practices for Crafting Eco-Friendly Candles”: https://www.nicandlesupplies.co.uk/blogs/tips-tricks/best-practices-for-crafting-eco-friendly-candles [6] The Soap Kitchen, Wedo ECO Wick: https://www.thesoapkitchen.co.uk/wedo-eco-wick/ [7] Cosy Owl, Wedo ECO Wick Raw: https://cosyowl.com/candle-wicks/wedo-eco-wick-raw [8] SERO Candles, “Sustainable Candles Guide”: https://serocandles.com/blogs/sustainability/sustainable-candles-guide