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Is It Okay to Leave a Candle on Overnight?

Jan. 11, 2023

Candles are no longer just used for lighting. They are used for aesthetic effects in spas, restaurants, bathrooms, and many other places that create an atmosphere, especially in fine glass jars. However, candle flames are also becoming increasingly popular. So, can a candle in a glass jar catch fire?


Yes, candles in glass jars can catch fire due to contaminants, large amounts of fragrance, poor quality glass, or burning to the bottom.


But that's not all! Read on to find out how to light candles in glass jars, what causes candles to catch fire, and 15 safety tips to do it safely like a pro.


Let's get burning!


Do glass candles cause fires? Candle fire facts revealed

Yes, candles in glass jars can cause fires, especially if they are made of poor-quality glass or wax.

Pink Candle Jars

 Pink Candle Jars

Is it okay to let candles burn all night?

No, you should not let a candle burn for more than four hours.


So how long should you burn a candle in a glass jar? You should not burn a candle for more than a few hours. In addition, the glass jar should be allowed to cool for at least two hours after burning for 3 to 4 hours before being re-lit.


Furthermore, the best way to calculate the total burning time of a candle is based on its size.


What is the best glass jar or container for burning candles?

Candles in glass jars are not only aesthetically pleasing but are also ideal for checking the wax quality. However, you should never compromise on quality when choosing a glass jar for burning candles.


In addition, you should choose a jar that is non-flammable, heat-resistant, non-porous and does not break easily. Also, choose a jar that can be filled with wax so that the wax does not fall apart when it melts.

 Heat Resistant Glass Jars For Candles

Heat Resistant Glass Jars For Candles

15 tips for burning candles in glass jars

Burning candles safely is not rocket science. That said, 35% of bedroom candle fires result in death and 47% result in injury.


Therefore, follow this 15-point checklist for burning candles safely in glass jars.


Always trim the wick of a candle to a quarter of an inch before lighting it.

Never leave candles unattended.

Always keep lit candles away from draughts, vents, and drafts to avoid burning or excessive dripping.

Avoid burning candles in closed rooms as they use up all the oxygen.

Make sure that children and pets cannot reach the lit candles to prevent tipping over.

Never place candle jars near flammable objects.

Always keep burning candles at least 12 inches away from flammable objects, curtains, furniture, books, carpets, drapes, decorations and clothing.

Do not move liquefied or burning candles.

When lighting multiple candles, always keep a 3" gap between candle glass jars.

Never extinguish candles with water, as in this case the hot wax will spread and damage the glass jar.

Always use a candle cutter to extinguish candles.

Never sleep with a candle lit.

Always keep your hair and clothes away from burning candles.

Never place a candle glass jar on an uneven surface.

Always place the jar on a heat-resistant surface. You should therefore always avoid using plastic surfaces.