Does the medium, in which the microorganism is grown, affect its halaal status? If so, what types of media are suitable and what types are not? For example, if beef is used, must the animal be halaal slaughtered?
Whilst it is haraam to utilize a haraam medium to grow microorganisms, the end product, viz. the plant, e.g. mushroom, is halaal although
abstention is best from the Taqwa point of view if a haraam medium such as poultry faeces or swine faeces is used. We believe that swine manure is sometimes used to cultivate mushrooms.