https://youdoit.fr/en/diy-candles/1392-6-hot-water-bags-candle-wax.html
6 hot-water bags for candle wax - Creative leisure - Youdoit
Bags to easily melt your candle wax mixtures in water bath Once the molten mixture you can add color and flavor to candle, then cool your mixture in the bag.
hot water bagscandle waxcreative leisureyoudoit