Lit jar candle with wick trimmer and candle snuffer on a heat-safe surface

Candle Care 101: First Burn, Wick Trimming, and Fixing Tunnelling

Candle Care 101: First Burn, Wick Trimming, and Fixing Tunnelling

A great candle should smell incredible and burn beautifully — but a few small habits make all the difference. This guide covers the candle-care basics we recommend for getting a clean, even burn and the best scent throw from your candle.

Why candle care matters

Looking after your candle helps you:

  • Get a more even melt pool (better performance and less wasted wax)
  • Reduce soot and smoke
  • Keep the flame stable and safe
  • Enjoy stronger, cleaner fragrance over the life of the candle

The first burn: set the candle up for success

The first burn is the most important burn.

Aim for a full melt pool

On your first light, let the wax melt all the way to the edge of the jar before blowing it out. This helps “train” the candle to burn evenly and reduces the chance of tunnelling later.

Rule of thumb: allow around 2–4 hours for the first burn, depending on room temperature and airflow.

Place it somewhere sensible

For the best burn:

  • Use a flat, heat-resistant surface
  • Keep away from draughts (open windows, fans, doorways)
  • Leave space around the candle so heat can rise evenly

Draughts can make the flame lean, causing uneven melting and more soot.

Wick trimming: the easiest way to improve every burn

A properly trimmed wick gives you a cleaner flame and helps prevent smoking.

How short should the wick be?

Before each burn, trim the wick to about 5 mm.

If the wick is too long, you may notice:

  • A larger, flickering flame
  • Soot on the jar
  • Faster burn time
  • A “mushroom” (carbon build-up) on the wick tip

What to trim with

You can use:

  • Wick trimmers
  • Small scissors
  • Nail scissors (in a pinch)

After trimming, remove any loose wick bits from the wax surface.

How long should you burn a candle for?

To keep things safe and help your candle last:

  • Burn for 2–4 hours at a time
  • Avoid burning for more than 4 hours in one go
  • Let the wax fully cool and re-set before lighting again

Short burns can increase the risk of tunnelling, especially early on.

Fixing tunnelling: how to rescue an uneven candle

Tunnelling is when the candle burns down the middle, leaving a ring of unmelted wax around the edge.

The good news: it’s usually fixable.

Quick fix: the foil method

This method helps trap heat and encourages the wax to melt evenly.

  1. Make a loose “collar” of foil around the top of the jar
  2. Leave an opening at the top so the flame has plenty of air
  3. Keep an eye on it while it burns
  4. Let it burn until the wax melts to the edges

Once the top layer is even again, remove the foil and continue normal burns.

Check your wick length

If the wick is too short, the flame may not generate enough heat to melt the outer wax. Trim to around 5 mm, but don’t cut it right down to the wax.

Avoid draughts

Even a small breeze can cause uneven burning. Move your candle to a calmer spot and try again.

Common candle issues (and what to do)

My candle is smoking

Try:

  • Trimming the wick to 5 mm
  • Moving away from draughts
  • Extinguishing, letting it cool, then relighting

There’s soot on the jar

This usually comes from a wick that’s too long or a candle burning in a draught.

  • Trim the wick
  • Keep the burn steady and out of airflow

The flame is too high

A tall flame can mean the wick needs trimming.

  • Blow it out safely
  • Let it cool
  • Trim the wick and relight

The candle doesn’t smell strong

A few tips:

  • Let the melt pool reach the edges (especially early on)
  • Burn in a smaller room for a more noticeable scent
  • Keep doors and windows closed while burning

Fragrance is also easier to notice once the wax has formed a proper melt pool.

Candle safety essentials

A few reminders we always recommend:

  • Never leave a burning candle unattended
  • Keep away from children and pets
  • Don’t burn on or near anything that can catch fire
  • Stop burning when there’s about 1 cm of wax left
  • Always use a suitable candle holder or heat-safe surface

CTA: Make candle care effortless

If you want a cleaner burn and a candle that stays looking lovely, a simple candle care tool set makes a big difference. Trimming your wick properly (and keeping the jar soot-free) is one of the easiest ways to improve every single burn.

Need help? If you’re not sure what’s causing tunnelling or smoking, message us and we’ll help you troubleshoot.

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