What is a crimi mushroom?

Answer 1

A crimi mushroom is a unopen portabella mushroom. Sometimes they stop growing and a firm small brown mushroom is the result. They used to be used as feed for livestock but, found a market value in the early 90's Chef CCC.CFSM

Answer 2

There is no known mushroom called "crimi mushroom." It is possible that it is a misspelling or a variation of a different type of mushroom, such as crimini mushrooms, which are a type of brown mushroom similar in appearance to white button mushrooms.