are considered food-grade?
Most of the species of microorganisms in EM are the same or similar to those found in foods. EM contains 3 basic groups of microorganisms: lactic acid bacteria, yeast, and phototrophic bacteria. Aside from phototrophic bacteria, examples of foods for each group are; lactic acid bacteria: yogurt, cheese, buttermilk, sour cream, pickles, sauerkraut and sausage. yeast: baking bread, making beer and winemaking.