How to Burn a Candle Correctly: The Complete Candle Care Guide

There’s more to burning a candle than simply lighting the wick. The way you burn and care for your candle can affect how evenly it melts, how well the fragrance fills your room and how long your candle lasts.

At Velia’s Candles, we’ve been hand-pouring candles in the UK since 2020, and over the years we’ve learnt just how much a few simple candle-care habits can make a difference.

From that all-important first burn to trimming your wick and preventing tunnelling, here’s our complete guide to burning your candle correctly and getting the most from every candle.

1. The First Burn Is the Most Important

The first time you light your candle can influence how it burns for the rest of its life.

Allow the wax to melt evenly across the surface of the candle before extinguishing it. This creates a full melt pool and helps prevent the candle from forming a narrow tunnel around the wick.

Depending on the size of your candle, reaching an even melt pool can take a few hours. However, always follow the individual candle's safety and burning instructions and never leave a burning candle unattended.

If a candle is repeatedly extinguished before the wax has melted sufficiently across the surface, it can begin to tunnel. Over time, this may leave unused wax around the sides of the container and reduce the useful life of your candle.

Velia’s Tip: On your candle's first burn, give yourself enough time to enjoy it properly rather than lighting it when you know you'll need to leave the house 20 minutes later.

2. Trim Your Wick Before Every Burn

Before lighting your candle, take a moment to check the wick. Keeping the wick neatly trimmed helps your candle burn more evenly and can reduce excessive smoke, soot and an overly large flame.

For most candles, we recommend trimming the wick to approximately 5 mm before each burn. Make sure the candle has completely cooled before trimming, and remove any loose pieces of wick from the wax before lighting it again.

If your candle starts producing noticeable smoke or the flame becomes unusually large or flickers excessively, extinguish it safely, allow it to cool and check the wick before relighting.

Velia’s Tip: Keep a wick trimmer near your candles. It takes a few seconds, but it can make a big difference to how cleanly your candle burns.

Additionally, candles don't supposed to produce smoke when they are burning. If you see that your candle producing smoke, extinguish it, let it cool down and then trim the wick. Don't forget to trim the wick before you light up your candle.

3. How Long Should You Burn a Candle?

It can be tempting to leave your favourite candle burning for hours, but longer isn't always better.

As a general rule, avoid burning a candle for more than around four hours at a time, unless the specific candle's instructions state otherwise. Burning for too long can cause the container and wax to become excessively hot and may affect how the candle performs.

At the same time, very short burns can prevent the wax from melting evenly across the surface, which may contribute to tunnelling.

For the best results, aim for a burn that allows an even melt pool to develop while always following the safety instructions provided with your candle.

Velia's Tip: Think of your candle as something to enjoy for a few hours rather than something to leave burning all day. Once you've enjoyed the fragrance, extinguish it safely, let it cool completely and relight it another time.

4. How to Prevent Candle Tunnelling

Candle tunnelling happens when the wax burns down through the centre of the candle while leaving a ring of unmelted wax around the edges of the container. Not only does this affect how your candle looks, but it can also mean that some of the wax — and fragrance — goes unused.

The best way to prevent tunnelling is to get the first burn right. Allow enough time for the wax to melt evenly towards the edges of the container before extinguishing the candle.

On future burns, continue giving the candle enough time to develop an even melt pool rather than repeatedly lighting it for very short periods.

What if your candle has already started tunnelling?

Don't give up on it just yet. If the tunnelling is still relatively mild, allowing the candle to burn for longer on its next burn may help the melt pool catch up with the wax around the edges.

If the tunnelling is more established, the candle may need a little extra attention. Whatever method you use, always follow the candle's safety instructions and never leave a burning candle unattended.

Velia's Tip: Prevention is much easier than fixing a badly tunnelled candle. That first proper burn really does matter.

5. Why Is My Candle Smoking or Sooting?

A small amount of smoke when you first light or extinguish a candle can happen, but persistent smoking or black soot is usually a sign that something needs adjusting.

One of the most common causes is a wick that has become too long. A longer wick can create a larger, less stable flame, which may lead to more smoke and soot around the container.

If you notice your candle smoking excessively, extinguish it safely and allow it to cool completely. Trim the wick to approximately 5 mm, remove any loose wick debris from the wax and then relight it.

Also make sure your candle isn't sitting in a draught. Open windows, fans and air-conditioning can cause the flame to flicker continuously, which may result in uneven burning and increased soot.

Why does my candle jar turn black?

Black marks around the inside of a candle container are often caused by soot from the flame. Keeping the wick properly trimmed and placing your candle away from draughts can help minimise this.

If you notice soot on the container, wait until the candle is completely cool before gently wiping the inside of the jar.

Velia's Tip: Watch the flame. A calm, steady flame is what we're looking for. If it's very large, constantly flickering or producing visible smoke, your candle is telling you it needs a little attention.

6. The Safest Way to Extinguish Your Candle

How you extinguish your candle is another small part of good candle care.

A candle snuffer is a simple way to extinguish the flame while helping to reduce smoke. Place the snuffer carefully over the flame until it goes out, then allow the candle to cool completely before touching or moving it.

If you blow your candle out, do so gently. Blowing too forcefully can cause hot wax to splash and may create more smoke.

Avoid using water to extinguish a candle. Water can cause hot wax to splatter and may damage or even crack a hot glass container.

Once extinguished, check that the flame is completely out and allow the wax to cool and solidify before trimming the wick or relighting your candle.

Velia's Tip: Once your candle is out, resist the temptation to move it straight away. Let the wax settle and cool first — then it'll be ready for its next cosy evening.

7. Where Should You Place a Burning Candle?

Where you place your candle can make a surprisingly big difference to both its performance and safety.

Always place a burning candle on a stable, flat and heat-resistant surface, away from anything that could catch fire. Keep it clear of curtains, bedding, decorations, books and other flammable materials.

Try to avoid placing your candle directly beside an open window, fan or air-conditioning unit. Draughts can cause the flame to flicker, which may lead to uneven burning, smoking and soot.

Burning candles should also be kept out of reach of children and pets, and somewhere they cannot easily be knocked over.

Most importantly, never leave a burning candle unattended. If you're leaving the room or going out, extinguish it first.

Can you move a candle while it's burning?

It's best not to. The container and melted wax may be very hot, and moving the candle increases the risk of spilling hot wax.

Extinguish the candle, allow the wax and container to cool completely, and then move it.

Velia's Tip: Before lighting your candle, think about where you're going to spend the next few hours. Find it a safe little home first, then light it and enjoy it. 🕯️

8. How to Store Your Candles Properly

Good candle care doesn't stop when the flame goes out. How you store your candles can help protect their fragrance, wax and appearance between burns.

Keep your candles in a cool, dry place away from direct sunlight and excessive heat. Leaving a candle on a sunny windowsill or close to a radiator can soften the wax and may cause discolouration over time.

If your candle comes with a lid, replace it once the candle has completely cooled. This can help keep dust and debris away from the wax between uses.

Can candles loose their scent?

Over time, fragrance can naturally change or become less noticeable, particularly when a candle is stored uncovered or exposed to heat and sunlight.

Keeping your candle covered where possible and storing it somewhere cool and away from direct sunlight can help preserve its fragrance for longer.

Before lighting your candle again, check that the wax is clean and that there are no pieces of wick, matches or other debris sitting on the surface.

Velia's Tip: If you've bought a beautiful candle for a future season or as a gift, don't hide it next to a radiator or in direct sunlight. Store it somewhere cool and dry until it's ready for its moment. 🤍

9. Candle Care FAQs

How often should I trim my candle wick?

Ideally, check your wick before every burn. Once the candle has completely cooled, trim the wick to approximately 5 mm and remove any loose pieces before lighting it again.

How long should I burn a candle for?

Give your candle enough time to develop an even melt pool, particularly during the first burn. Avoid burning a candle for more than around four hours at a time, unless the candle's specific instructions state otherwise.

Why is my candle tunnelling?

Tunnelling usually happens when the wax melts only around the wick rather than evenly across the surface. Repeatedly burning a candle for very short periods can contribute to this. Giving your candle a good first burn and allowing an even melt pool to develop can help prevent it.

Why is my candle flame so big?

An overly long wick can create a larger flame. Extinguish the candle safely, allow it to cool completely and check the wick before relighting. If the flame continues to appear unusually large or unstable, stop using the candle and follow the manufacturer's instructions.

Why does my candle produce black smoke?

A wick that is too long, an unstable flame or a draught can contribute to smoke and soot. Keep the wick properly trimmed and place the candle away from open windows, fans and other draughts.

Should I pour out melted candle wax?

No. The melted wax is part of your candle's fuel and should normally be allowed to cool and solidify again after the candle has been extinguished. Pouring hot wax away can also create a burn risk.

Can I leave a candle burning while I leave the room?

Never leave a burning candle unattended. Extinguish it before leaving the room, going to sleep or leaving your home.

Why doesn't my candle smell as strong as it used to?

Fragrance can change over time, particularly if a candle is exposed to heat or direct sunlight. Store candles somewhere cool and dry, away from direct sunlight, and keep them covered when possible.

A Little Candle Care Goes a Long Way

Taking care of your candle doesn't need to be complicated. A properly trimmed wick, a good first burn and a little attention each time you light it can help you enjoy your candle at its best.

At Velia's Candles, every candle is handmade with care in the UK. Since 2020, candle making has taught us that the little details really do matter — from creating the candle to the way it's enjoyed in your home.

So trim the wick, give that first burn a little patience, light your favourite fragrance and enjoy the moment. 🕯️

Ready to find your next favourite scent? Explore our handmade Signature Candle Collection.