I would like to ship homemade mozzarella. I'm considering purchasing a vacuum packaging system to preserve it for the 2-3 day trip. Is this recommended? If not, are there any alternatives?
Mozzarella needs to be refrigerated, outside the fridge it has a limited shelf life, see our generic question: How do I know if food left at room temperature is still safe to eat?
So shipping without some means of cooling will result in an unsafe product, look into shipping methods for perishable products. Your local mail or parcel carrier should be able to assist you.