The heater has an auto shutoff if it got too hot, so [abizar] felt safe keeping the dry bath on, unmonitored. The aluminum block sits in a plywood box lined with rubber from an inner tube ...

Again, make sure to label them with instructions. Given as-is, the bath salt bars are lovely. However, paired with homemade body butter, DIY lip balm, and a pack of hot chocolate, your lovely gift ...