Complex sentence: Then the beans are removed and either methylene chloride or ethyl acetate is used to extract the caffeine from the water--as in other methods, the caffeine can then be separated from the organic solvent by simple evaporation.
Split into simpler sentences: Then the beans are removed and either methylene chloride or ethyl acetate is used to extract the caffeine from the water. As in other methods, the caffeine can then be separated from the organic solvent by simple evaporation.