From the Facebook group In cucina con Magic Vac thanks to Riccardo! Cured meats vacuum sealed can be stored up to 5 times longer, and you can also slice just the appropriate amount to eat and put them back vacuum packed in our multi-layer bags. Our bags are made from a patented ribbed multi-layer film with an external nylon layer that acts as a barrier to moisture and oxygen, the main opponent of food deterioration. They are also BPA free and suitable for sousvide!