With vacuum bags you will be able to keep your favorite foods or leftovers from meals for as long as possible without altering the flavor or aroma.Composed of 7-layer PA PE, one smooth side and one embossed (knurled) thickness 105 microns (3/4 thicker than normal plastic bags)DON'T BE AFRAID TO KEEP THEM IN CONTACT WITH FOOD BPA FREE - They have a migration below the threshold, so you won't have to worry about keeping them in contact with food, whatever it is.Suitable for contact and vacuum cooking of all foods up to: 43h at 60 °C, 18h at 70 °C, 8h at 80 °C, 4h at 90 °C, 4h at 100 °C, 1h at 121 °CCooking without fat and with few condiments, still obtaining excellent results both in terms of flavor and aroma. Delight yourself with exquisite vacuum-packed recipes: beef steak, chicken, duck breast, tuna, salmon, eggs, vegetables