In Leviathan Wakes, Miller is shown eating fake beans with real rice. But why? My knowledge of agriculture is below zero but I feel like if you can supply real dried rice in space you could also supply real dried beans as well.
An hour later, his blood warm with drink, he heated up a bowl of
real rice and fake beans—yeast and fungus could mimic anything if you
had enough whiskey first
Found a clue I think from a separate space discussion. It's farts.