These Portobello Mushrooms are commercially grown in the USA. They are basically a brown button mushroom (Crimini) grown to a large size. Use them in any dish where you want a mushroom flavor such as in soups, sauces, gravies etc. Add them to a can of cream of mushroom soup, and you will not believe the flavor. We put them in beef stroganoff and it has become a family favorite. These mushrooms are rated Medium to Strong on the Mushroom Flavor Scale. 1/2 oz. package One 1/2oz. Bag Dried "Portobello" Mushrooms -$1.50 2 oz. package 2 oz. Bag Dried "Portobello" Mushrooms -$6.75 8 oz. package 1/2 Lb. Dried "Portobello" Mushrooms -$14.50 16 oz. package One Lb. Dried "Portobello" Mushrooms -$27.00