Brain heart infusion (BHI) is a growth medium for growing microorganisms. It is a nutrient-rich medium, and can therefore be used to culture a variety of fastidious organisms. In particular, it has been used to culture streptococci, pneumococci and meningococci, which can be otherwise challenging to grow.[1] BHI is made by combining an infusion from boiled bovine or porcine heart and brain with a variety of other nutrients.[2][3] BHI broth is often used in food safety, water safety, and antibiotic sensitivity tests.[3]