Supplies:
Ground coffee, 1 Tbsp – I used medium-grind coffee I had already brewed, and then I let it dry out on the counter for a day or two.
Soap base, 8 oz by weight – I used this Goats Milk Glycerin Soap.
Mint essential oil
Measuring cup
Knife
Soap mold – I used a tofu container, but plastic or cardboard containers of many shapes and sizes could work. Lots of people use milk cartons.