Complex sentence: Afterwards, the mushroom is grown for another 30 days in a slightly cooler but more humid environment where the growth is constricted in a paper cone to force the mushroom to grow long and thin.
Split into simpler sentences: Afterwards, the mushroom is grown for another 30 days in a slightly cooler but more humid environment. The growth is constricted in a paper cone to force the mushroom to grow long and thin.