If it reaches 72 degrees, the mushrooms will die within 24 hours. The spores, from which the white cultured mushrooms grow, can’t be seen with the naked eye. Hasselmann and the workers ...

ANSWER: Mushrooms have come a long way. Nowadays, there are more exotic varieties, both fresh and dry, sold at most grocery stores. But the white, cremini (brown) and portabella mushrooms are most ...