This depends on the machine. Most of the machines at the market have just one cooking program, and this is the one designed for soy beans. However rice milk needs completely different cooking cycle, otherwise it can burn, overcook etc. All Magic Bean machines can make vegan milk from any kind of grains (rice, sesame, oat, barley, spelt) as well as from various nuts.

The rule is: measure 75-105 g dry beans, grains, rice or nuts, preferably soften in water for 5-14 hours or overnight, and then cook the milk. If you use grain flakes (oat flakes, rice flakes), reduce softening to just half an hour.