I bought a 3 pound bag of peeled garlic. Some of them have white mold on them. Should I throw the lot away or pick through the bad ones & discard?
Throw the lot away. Mold is not always visible but when it is, the mycelium may be present in the entire substance, especially in foods with high moisture content. Eating the mycelium can make you sick and it can continue to develop mold after you've cut the moldy parts away.