How long before butter goes bad?
Unopened salted butter should keep two to four weeks when refrigerated at 40ºF or lower (without freezing). The salt in butter not only brings out the flavor, but also acts as a preservative. Unsalted butter has a shorter shelf life and is best kept frozen until ready to use. Always wrap butter securely while storing to retain full flavor and to minimize picking up other food odors. Butter may be kept frozen at 0º f (or lower) for six months without harming its quality. To freeze, wrap butter well in original wrapper covered with plastic or foil.
Unopened salted butter should keep two to four weeks when refrigerated at 40F or lower (without freezing). The salt in butter not only brings out the flavor, but also acts as a preservative. Unsalted butter has a shorter shelf life and is best kept frozen until ready to use. Always wrap butter securely while storing to retain full flavor and to minimize picking up other food odors. Butter may be kept frozen at 0 f (or lower) for six months without harming its quality. To freeze, wrap butter well in original wrapper covered with plastic or foil.