UltraSource Sous Vide Vacuum Pouches, 3 mil, 8" x 12" (Pack of 100) NOT COMPATIBLE WITH FOOD SAVER SEALERS Sous Vide uses a chamber vacuum machine to seal foods (especially liquids) and later submerging in a controlled-temperature water bath Cook, freeze, and reheat in one bag - max temp 239F (115C) Durable 3 mil thickness keeps your product safe and leak-free during cooking BPA free and FDA approved