is it a commonly used compressed vacuum packaging bag in food factories? If that’s the case, it should last more than 20 – 30 days without adding other drugs. But why vacuum pack fresh beef? Generally, the compressed vacuum packaging is cooked food or semi-finished products. If you add food preservatives to fresh beef, it should not be bad for several months. If it were not made in the factory, it seems that lemon juice can be coated on the surface of fresh meat. The principle seems to prevent protein from deteriorating in the presence of air.