A double-boiler is a small pan sat inside a larger pan of boiling water. Simply fill a large pan with water (no more than half filled) and place it on your heat source – hob or hotplate to heat. Next, place your wax in a smaller pan or glass bowl/jug and place the pan/bowl/jug in the large pan. Heat over medium to low heat until your wax has melted. We advise not letting your wax heat to any more than 85C as you risk it burning. This method is recommended as it allows the wax to melt slower and consistently which in turn avoids issues such as overheating and burning of the wax.