To mix substances together, they have to all be the same type. Mills allow you to turn any solid substance, such as pills or crystal, into a powdered substance.
The most important equipment for mixing, the actual tools you use to combine various drugs and substances to create your end product. These come in two types, solid and liquid mixers. Liquid mixers allow you to mix liquid substances together and to dissolve solid substances in a solvent such as acetone.
Liquid mixes cannot be packaged or sold by themselves, but they first have to be dried. Drying a liquid substance creates a crystal substance. Drying also removes all of the solvent from the liquid mix, leaving only the solid substances.