Can you eat Moldy Swiss cheese?

Yes, but should you? The rule of thumb for mold on aged hard cheeses is to cut away the mold and cheese within one inch of the mold. The remainder should be edible. The reason for this is cheddar cheese won't mold as fast as cottage or mozzarella because cheddar is not as moist as those cheeses and since mold needs moistness to grow, those 2 cheeses are the best place for mold to grow. Mold starts out as spores, and the spores are the beginning of the life cycle for mold. If you are a cheese person, always get to your cheese early, especially if it is mozzarella or cottage. If mold is found on soft cheese, such as, cottage cheese or cream cheese, the entire package should be discarded.