The first time I saw my grandmother cut a spot of mold from a block of cheddar cheese, I watched in abject horror. It felt just as wrong as it looked, but I dare not question my Grandma Ree’s ...

Whether one moldy slice ruins the rest depends on the type of cheese and its packaging. Hard cheeses can sometimes be salvaged, but soft, sliced, shredded, or crumbled cheeses should be discarded.