If the germ theory is relatively new, how do they think fermentation was happening (like wine, ale, yogurt etc.) thousands of years ago?

Question

If the germ theory is relatively new, how do they think fermentation was happening (like wine, ale, yogurt etc.) thousands of years ago?

In: 613

Answer 1

They new about bacteria, fungus, etc. Germ theory describes why and how, not exactly what. Remember that they can see the yeast and such because of the size of colony. It happens more than once and these big collections of something are growing in it? It’s obviously connected even if they don’t truly have a good understanding of it.