Cleaning and reusing your candle jars

Give an empty candle jar a new purpose, but only if the glass is sound. Follow these gentle steps and never force stubborn wax or fittings out.

Let the jar cool completely

Extinguish the candle and leave it on a stable, heat-resistant surface until both the wax and glass are completely cool. Never clean a burning or warm candle, and never add cold water to hot glass.

Remove the remaining wax

Gently lift out loose, cooled wax with a wooden or plastic utensil. Do not use a knife, scrape hard or prise against the glass. Wipe away small traces with kitchen paper and put the wax in your household waste, not down the sink. If wax or the wick holder will not release gently, leave it in place and do not force it.

Wash away wax traces and soot

Once the loose wax is removed, wash the room-temperature jar gently with lukewarm water, washing-up liquid and a soft cloth. Wipe soot from the rim and inside without abrasive pads or harsh cleaners. Rinse and dry thoroughly. Avoid boiling water, sudden temperature changes, microwaves, ovens and dishwashers.

Check the glass before reusing

Inspect the clean, dry jar in good light, including the rim and base. Do not reuse it if you see cracks, chips, deep scratches or other damage, or if residue or fittings cannot be removed safely. Stop handling damaged glass and seek local council guidance on safe disposal.

Choose a gentle new use

An undamaged, fully clean and dry jar can hold small non-food items such as pens or craft supplies. Keep it away from children and pets. Do not use it for food or drinks, hot liquids, cooking or a new candle. An intact appearance does not establish that used candle glass is safe for further heat exposure.

If you are unsure about the condition of a jar, do not reuse it. For disposal options, check your local council's guidance for candle containers rather than assuming the jar can go in household glass recycling.