Crab Apples does not refer to a specific species. It’s a reference to size as wild apples are usually small. Thus, they look like miniature apples and share the common ancestry as with the ordinary apples. Their colors vary from red to orange to yellow. There are many types of Crab Apple trees, hundreds of hybrid. And the taste varies across the whole line of hybrids. Crab Apple taste varies from tart to very tart. And they can be eaten raw as well as cooked. Mostly, Crab Apples are cooked by adding sugar to minimize the tartness by the consumers. Crab Apples do not contain enough sugar to be fermented into Alcohol. Crab Apples are sour but they aren’t poisonous. Like regular apples, their seeds do not contain toxins