Beyond burgers and other beyond meat products are sold to stores frozen. Depending on where you shop, you may find them in the freezer section, or you may find them thawed in a refrigerated space. If you buy Beyond burgers frozen, you can store them in the freezer until you're ready to thaw and cook them. If you buy vegan burgers thawed, they should be stored in the refrigerator and cooked before the best by date on the package.