Unused shoe boxes work great for this. If you want to use a plastic container, try poking a few holes in it for ventilation if needed.
Consider alternating any bars of soap while you’re using them. You can use one while the other dries and add more bars into the mix if you have more than a few people using them. [6] X Research source
Use less water if you want more of a body wash consistency. [8] X Research source For a smoother mixture, you can use a hand mixer or a spoon to help blend the cooled soap. [9] X Research source This is a great way to use liquid soap while saving money and lowering your carbon footprint. [10] X Research source
If you only have a loaf pan to use as a mold, you can always cut the soap into smaller pieces.
