Note that they are not yet "pumping" out anything. Their plan is to start selling next year, which means that it probably will take another few years. I think that it makes much more sense to make meat and cheese directly from plant proteins, without going through the trouble of growing meat in bioreactors. Assuming that both will have a similar endproduct (and Impossible shows that it's possible), making from plant…
This is not clear at all. If you look into what goes into making something like an Impossible Burger, it is basically none of those things.