Why Did My Candle Sink in the Middle?
For anyone asking why did my candle sink in the middle, wax shrinkage and uneven cooling can explain the depression.
Candles are a hobby I take seriously enough to read the safety sheets. When I explain why a candle tunnels, which wax suits which use, or how to add dried flowers without turning a jar into a fire hazard, I start from the wax and wick makers’ guidance and the National Candle Association’s rules, and I only lean on craft blogs for hands-on technique I can’t get from a manufacturer.
For anyone asking why did my candle sink in the middle, wax shrinkage and uneven cooling can explain the depression.
How to mold candles at home: prep the mold, set the right pour temperature for your wax type, and avoid the mistakes that ruin a pour.
The best way to remove candle wax from a candle holder is to harden it in the freezer or soften it with hot water, then match the method to the material.
Paraffin wax is not inherently toxic, but burning releases benzene and toluene, and paraffin oil poses a real poisoning risk if swallowed by children.
Learn how to make homemade candles with essential oils, including drop ratios by wax type, a worked pouring example, and fixes for weak scent throw.
Let leftover wax cool and harden, then reuse it, recycle qualifying brands through TerraCycle, or throw it in the trash, never down the drain.
What can I use as a candle wick: cotton twine, wooden skewers, cotton balls, or paper, wax-soaked first, plus how a real wick works and which is safest.
A candle flame gets as hot as about 1,400 degrees Celsius at its outer zone, and a standard candle produces roughly 80 watts, or 250 to 270 BTU per hour.
You measure foot candles with a handheld light meter set to FC mode, positioned flat at the task surface and aimed at the light source.