How much liquid soap/leaves of soap do I need to do laundry? Can I use the soaps in a machine?

Yes. While both products were originally designed for hand-washing in a sink (which holds about two gallons of water), they can also be used in a washing machine. For sink use, you’ll only need one or two Pocket Soap leaves or about 10ml (one capful) of the liquid Laundry Wash.

A typical washing machine uses about 25 gallons of water per cycle. In theory, that would scale to around 20 leaves or a quarter of a 100ml bottle. In practice, however, most laundromat and home machines already have enough detergent residue in them that you won’t need nearly that much.

Usually, a small squeeze of liquid soap (about one-tenth of a bottle) or five to six leaves is sufficient. If you’re using the leaves, dissolve them in a little water before adding them to the wash.

The soap itself works just fine in a machine — you simply don’t need to use very much.