Safety
Removing oxygen from the packaging is a main advantage to vacuum packing. Certain bacteria that cause spoilage need oxygen to grow and reproduce. Without oxygen the food will last much longer because the bacteria can't "do their thing." But the advantage a low-oxygen environment creates can also be a disadvantage. There are types of bacteria that cause diseases which prefer low oxygen environments and grow well in vacuum packed foods. If you feel the food you have is clean and uncontaminated, this should not be a problem, but if there is any question about the safety, do not vacuum pack the food, as you would just be creating a perfect breeding ground for some bad bacteria, such as botulism.