A Sweet Combination of Oriental Flavors. 0 g Trans Fat per Serving. Freeze Dried. Delicious Meals Anytime, Anywhere. For nearly 40 years, Mountain House products have been the first choice for backpacking and camping, as well as emergency and food storage needs. Our foods are shelf-stable and can be easily prepared with just boiling water. . Mountain House #10 cans have a 25 year shelf life when stored properly! #10 Cans-- 25 Year Shelf Life. Mountain House freeze-dried foods are packed in airtight NITROGEN PACKED #10 cans. Up to 98% of the residual oxygen has been removed. Our unique canning process uses both vacuum oxygen removal and nitrogen flushing. This is a time consuming and slightly more costly processbut well worth it. It is the same process mandated by the U.S. Military for whom we also can. Our foods will have the longest shelf life availableup to 30 years! We've been around for 40 years so we know first hand. We invite you to compare. Each can is coated with a protective enamel inside and out for double protection, including the lid. The can contents are protected until you are ready to open and use them. After opening, we recommend using the contents within 1 week for best results and taste; using the convenient resealable plastic lid between uses. Treat any leftover food as you would fresh food.