Candle additives are usually safe only when they are made for candle use, compatible with the wax and wick system, and tested one variable at a time. On this page, “safe” means candle-fit, burn...

A UV inhibitor is a candle additive that can slow some light-driven fading or yellowing, and you use it by choosing a supplier-led rate for the wax and confirming the result with...

Mason jars can be used for candles only when they are true canning jars that pass inspection and controlled burn testing with the intended setup. On this page, safe means suitable to screen and...

Heat-resistant glass for candles means a candle jar sold or screened for filled candle use, with lower crack risk from residual stress and abrupt temperature change. A jar can look solid and still...

A candle mold’s wax capacity is the usable cavity volume up to the planned fill line, and on this page “how much wax” means the wax-only amount for one mold cavity after conversion. Outside...