Are Scented Candles Worth Buying? A Maker’s Honest Answer

Yes, scented candles are worth buying if you value the atmosphere, mood, and sense of wellbeing they create. Their worth depends entirely on the quality of the candle and how you use it. A well-made candle from a transparent maker is a safe, enjoyable luxury, while a poorly made one can be a waste of money and a source of indoor air pollutants.

Ultimately, the decision comes down to prioritising a few key factors: the wax, the wick, and the fragrance. These elements separate a great candle from a disappointing one. This guide gives you the knowledge we’ve gained as practitioners to make a choice you feel good about.

Quick Summary

A candle’s safety and performance are primarily determined by its wax, wick, and fragrance quality, not just its price.
Natural waxes like coconut and rapeseed burn cleaner than petroleum-based paraffin, which can release undesirable chemicals.
Proper candle care, including wick trimming and burning in a well-ventilated area, is essential for safety and minimising soot, as advised by the US EPA [1].
High-quality scented candles use fragrances that comply with IFRA safety standards, ensuring they are tested for consumer safety.
A candle’s first burn is critical; it must melt to the edges to prevent ‘tunnelling’ and ensure you get its full burn time, which for our 220g candles is around 45 hours.

What Does the Science Say About Scented Candles and Health?

Concerns about scented candles and health are valid and focus on indoor air quality. When you burn any candle, it releases compounds into the air. The key question is what those compounds are and if they are harmful. Scientific studies show that the type of wax is the single most important factor.

Paraffin wax, a byproduct of petroleum refining, has been shown in some studies to release volatile organic compounds (VOCs) when burned, including known carcinogens like benzene and toluene. While the amounts are typically small, the concern is about cumulative exposure in unventilated spaces. A major review by the US Environmental Protection Agency (EPA) identified candles as a source of indoor air pollution, particularly if made from paraffin [1].

In contrast, waxes derived from natural sources like coconut and rapeseed are a much cleaner choice. We use our own blend of coconut and rapeseed wax precisely for this reason. It is a sustainable, renewable resource that provides a slow, clean fragrance release without the indoor air quality concerns associated with paraffin. We are proudly soy-free and paraffin-free by choice.

Many studies, including a comprehensive toxicological assessment published in a peer-reviewed journal, have used advanced methods like gas chromatography–mass spectrometry (GC–MS) to profile candle emissions [2]. The consensus is that while all candles produce some particulate matter, the risk from a well-made, natural wax candle burned with good ventilation is very low for the general population. People with asthma or severe fragrance sensitivities should always be cautious.

How to Choose High-Quality Scented Candles: A Maker’s Checklist

Choosing a good candle goes beyond simply picking a scent you like. As candle makers, we focus on a few key components that define quality, performance, and safety. Understanding these will help you see why some scented candles are worth the investment and others are not.

Wax Type: The Foundation of a Good Candle

The wax is the fuel for the flame and the medium that holds and releases the fragrance. It is the most important choice in candle making.

Paraffin Wax: This is the most common and cheapest wax. As a petroleum byproduct, it holds scent well. In our experience from starting out, paraffin wax is quite easy for beginners to work with because it sets smoothly without precise temperature control. However, we consciously avoid it due to the indoor air quality concerns raised by studies on its emissions.
Soy Wax: A popular natural alternative, soy wax is a hydrogenated form of soybean oil. While it is a natural product, it has drawbacks. Its performance can be inconsistent, sometimes resulting in a weaker scent throw or a rough, bumpy surface after burning. There are also significant environmental concerns about the deforestation and pesticide use associated with large-scale soy farming.
Coconut & Rapeseed Wax (Our Choice): We exclusively use our own custom blend of coconut and rapeseed wax. This blend combines the best of both worlds: the clean, slow burn of coconut wax and the excellent scent-holding capacity of rapeseed wax. Both are sustainable, renewable crops. Our blend is paraffin-free, soy-free, and palm-free, ensuring a pure fragrance experience and a clean burn from start to finish.

Wick Material: The Engine of the Flame

A candle’s wick draws the melted wax up to the flame to be burned. A poor-quality wick can ruin an otherwise good candle. In the past, some wicks contained a lead core to keep them upright, but these were banned in the UK and US due to health risks. Today, you should look for wicks made from cotton or wood. All our candles use zinc-free and lead-free cotton wicks for a clean, stable flame.

Proper wick maintenance is crucial. A wick that is too long will create a large, flickering flame, producing soot and burning through the candle too quickly. Always trim your wick to about 5mm before each burn. This simple step ensures a safer, cleaner, and longer-lasting candle experience. If you want to dive deeper, we’ve covered the differences in our Double Wick vs Single Wick Candles: Definitive Guide.

Fragrance Source: The Heart of the Experience

The scent is why you buy scented candles, but not all fragrances are created equal. Fragrances can be derived from essential oils (distilled from plants) or fragrance oils (synthetic aromatic compounds). While ‘essential oils’ sounds more natural, they are not always suitable for candles; some can be unstable at high temperatures or even become toxic when burned.

High-quality fragrance oils are specifically designed for candle use. Reputable makers use oils that comply with the International Fragrance Association (IFRA) standards. These standards set strict limits on the use of certain ingredients to ensure they are safe for consumers. We test every fragrance for both its ‘cold throw’ (the scent when unlit) and its ‘hot throw’ (the scent when burning) to ensure a consistent and beautiful experience that fills the room without being overwhelming.

Are Expensive Scented Candles Better?

Generally, a higher price for scented candles reflects the use of superior materials and more rigorous testing. While you can find cheap scented candles everywhere, they often cut corners on the three most important elements: wax, wick, and fragrance. This is not just about a weaker scent; it’s about safety and the burning experience.

As our founder, Matthew Romane, noted after speaking with industry buyers, quality is no longer a ‘nice-to-have’. This shift reflects a growing consumer demand for transparency and quality, which inevitably costs more to produce.

Here is a simple breakdown of what you are paying for:

When you invest in a quality candle, you are paying for the peace of mind that comes with better ingredients, adherence to safety standards like the ASTM F2058 candle fire safety standard [3], and a superior sensory experience. For many, that makes it one of the best long lasting scented candles UK buyers can find.

Practical Troubleshooting for Common Candle Problems

Even the best scented candles can have issues if not cared for properly. Here’s our practitioner’s guide to fixing the most common problems, ensuring you get your money’s worth from every candle.

How to Fix Candle Tunnelling

Tunnelling is when the wick burns straight down the centre of the candle, leaving a thick wall of unused wax around the edges. This wastes wax and shortens the candle’s life.

Cause: The most common cause is not letting the candle burn long enough on the very first use. The first burn creates a ‘burn memory’.
Prevention: On the first burn, let the candle stay lit until the entire surface has melted into a liquid pool that reaches the edges of the container. This usually takes about one hour for every inch of the candle’s diameter.
The Fix: If a tunnel has already formed, you can use the ‘foil method’. Light the candle, then wrap a piece of aluminium foil around the top, creating a dome with a small opening for the flame. This traps heat and helps melt the stubborn wax on the sides. Let it burn like this for an hour or two until the surface is level. Never leave it unattended during this process.

How to Reduce Soot and Smoke

Soot (black smoke) is a sign of incomplete combustion. It can stain the container and release particulates into the air.

Cause: The most frequent causes are a wick that is too long, or placing the candle in a draughty area.
Prevention: Always trim your wick to 5mm before every single burn. Keep the candle away from open windows, fans, or high-traffic areas where air movement can disturb the flame.
The Fix: If you see soot forming, extinguish the flame, let the candle cool completely, wipe the inside of the container with a dry paper towel, and trim the wick before relighting.

What to Do If Your Candle Has No Scent

It is disappointing when a scented candle doesn’t smell as strong as you’d hoped. Several factors can be at play.

Hot Throw vs. Cold Throw: Some candles have a strong ‘cold throw’ (unlit) but a weak ‘hot throw’ (lit). This is a sign of a poorly made candle where the fragrance doesn’t bind well with the wax. We test all our candles to ensure a great hot throw.
Room Size: A small candle will struggle to fill a large, open-plan room. For larger spaces, consider using multiple candles or a more powerful format like wax melts.
Olfactory Fatigue: Sometimes your nose simply gets used to the scent after a while and stops registering it. Try leaving the room for 10-15 minutes and then coming back in. The scent will often seem much stronger.

Scented Candles and Safety: A Non-Negotiable Guide

Enjoying scented candles safely is simple if you follow a few basic rules. As makers, we consider safety our highest priority, from production to final use.

First, fire safety is paramount. Never leave a burning candle unattended. Keep it away from flammable objects like curtains, books, and bedding. Place it on a stable, heat-resistant surface away from the reach of children and pets. The ASTM F2058 standard provides a clear framework for fire safety labelling, which all reputable manufacturers follow.

Second, ventilation is your friend. Always burn candles in a room with adequate air circulation. This helps disperse the fragrance and any combustion byproducts, ensuring a pleasant and safe experience. This is especially important for those who might be sensitive to strong smells.

Finally, let’s talk about pets. We are not vets, and you should always consult yours if you have concerns. An animal’s sense of smell is far more sensitive than ours. While our natural wax candles are clean-burning, we believe that forcing a strong scent on a pet unnecessarily is not always the kindest choice. Never leave a pet alone in a room with a burning candle.

Q: Are scented candles toxic?

A: High-quality scented candles made from natural waxes and IFRA-compliant fragrances are not considered toxic when burned correctly in a well-ventilated space.

Q: How long should you burn a scented candle?

A: You should burn a scented candle for one hour for every inch of its diameter on the first burn, and for no more than four hours at a time thereafter.

Q: Can scented candles cause headaches?

A: Yes, strong or synthetic fragrances can trigger headaches or sensitivities in some individuals, making it important to choose high-quality fragrance oils and ensure good ventilation.

So, Are They Worth It?

After weighing the science, the materials, and the practicalities, our answer remains a confident yes. Scented candles are worth buying when you approach them as a considered purchase, not a disposable commodity. They are a simple and effective tool for shaping your environment, improving your mood, and practising a moment of self-care.

The key is to choose wisely. By opting for candles made with natural waxes, lead-free wicks, and high-quality, safety-tested fragrances from a maker who is transparent about their ingredients, you are investing in a product that is both safe and deeply enjoyable. The difference in experience between a cheap, paraffin-based candle and a hand-poured coconut wax candle is something you can truly feel and smell.

Now that you know what makes the best candles in the UK, you can make an informed choice. The value of a scented candle isn’t just in the wax and wick, but in the quiet moments of comfort and luxury it brings to your day.

Ready to experience the difference that quality ingredients and craftsmanship make? You can explore our collection of hand-poured candles, made with our signature coconut and rapeseed wax blend in our Nottingham workshop. Find a scent that speaks to you and see why a great candle is always worth it.

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Author: Matthew Romane, Founder & Managing Director, Mattys Candles.

With a background in product design and a passion for fragrance, Matthew founded Mattys Candles in 2018. He personally developed the brand’s signature coconut and rapeseed wax blend after extensive testing, focusing on creating a clean-burning, high-performance candle that was free from paraffin and soy. He continues to oversee all fragrance development and quality control in our Nottingham workshop.

Sources:

[1] US Environmental Protection Agency (EPA). (2001). Candles and Incense as Potential Sources of Indoor Air Pollution. https://nepis.epa.gov/Adobe/PDF/P1009BZL.pdf [2] Petry, T., et al. (2014). Human health risk evaluation of petro-based and vegetable-based candles for carcinogenic and non-carcinogenic effects of emitted substances. Published in Regulatory Toxicology and Pharmacology. [3] ASTM International. (2024). Standard Specification for Candle Fire Safety Labeling (F2058-24). https://www.astm.org/f2058-24.html

Frequently Asked Questions

What is the healthiest candle wax to burn?

Natural waxes like coconut wax, rapeseed wax, and beeswax are considered the healthiest choices as they are renewable, biodegradable, and burn cleanly without the potentially harmful VOCs associated with petroleum-based paraffin wax.

How can you tell if a scented candle is good quality?

A good quality candle uses natural wax, has a lead-free cotton or wood wick, provides a strong and consistent scent when lit, and comes from a brand that is transparent about its ingredients and safety testing.

Are scented candles bad for my pets?

You should always consult your vet, as pets are highly sensitive to smells. While clean-burning natural wax candles are safer than paraffin, it’s best to burn them in a well-ventilated area and never leave a pet unattended with a lit candle.

Why do some scented candles give me a headache?

Headaches are often triggered by low-quality or overly strong synthetic fragrances, or by burning candles in a poorly ventilated space. Choosing candles with high-quality, IFRA-compliant oils and ensuring good airflow can help prevent this.

What’s better, soy wax or coconut wax for candles?

We prefer coconut wax, often blended with rapeseed wax. It provides a cleaner, slower burn than soy and has a better scent throw. It is also generally considered more sustainable than mass-produced soy, which is often linked to deforestation.

Is it okay to burn scented candles every day?

Yes, it is generally safe to burn high-quality scented candles daily, provided you do so in a well-ventilated room and for no more than four hours at a time. Always follow safety precautions and trim the wick before each use.

How do I make my scented candles last longer?

To make your candle last longer, always trim the wick to 5mm before lighting it, and on the first burn, let the wax melt all the way to the edge of the container. Avoid burning it for more than 4 hours at a time.