What does it mean if meat package puffs up?

A puffy meat package indicates spoilage and the presence of harmful bacteria. When bacteria grow and multiply inside the package, they produce gases that cause the package to swell. This swelling is a sign that the meat is no longer safe to consume and should be discarded immediately.

Puffy meat packages can also indicate the presence of vacuum leaks. When meat is vacuum-packed, the air is removed from the package to prevent spoilage. If there is a leak in the packaging, air can enter and come into contact with the meat, allowing bacteria to grow. This growth of bacteria can cause the package to swell and become puffy.

Therefore, if you notice a meat package that has become puffy, it is important to discard it and not consume the meat.