Wild Morel Mushrooms Dried - France. Ingredients: Morel Mushrooms (Morchella Conica). Preserve dried French mushrooms in an airy bag in a dry room. Instructions: Soak in lukewarm water for 15 minutes. Drain, then dip in boiling water for another 10 minutes. Place in colander and rinse thoroughly. 1 oz of dried French Morels equals 10 oz of fresh wild mushrooms.