Why can a spray sterilization retort sterilize vacuum aluminum foil bags?

    A spray retort can sterilize vacuum-sealed aluminum foil pouches because it uses high-temperature water spray or steam to heat the entire package uniformly and rapidly, reaching the required sterilization temperature and duration. The vacuum aluminum foil pouch can tolerate high temperatures and pressure, and the vacuum inside facilitates heat transfer, ensuring effective sterilization.

     The spray retort uses a pump to spray hot water or steam over the package surface, achieving even heating and avoiding cold spots, which effectively kills microorganisms like bacteria, yeast, and mold. Vacuum aluminum foil pouches are typically made of high-temperature-resistant materials (such as aluminum foil and composite plastic layers) that withstand the high temperatures (e.g., around 121°C) and pressure during sterilization, preventing breakage. Meanwhile, the vacuum state inside the pouch reduces gas interference, accelerates heat transfer, and allows the food inside to be thoroughly sterilized. This method is widely used in the food industry for sterilizing products like vacuum-packed meats, sauces, and more.call me8615169670012