This is food-grade Himalayan black salt. I purchased it some time ago and haven't been able to use it all, so it's been stored at home. It can be used not only for consumption but also as bath salt. As it is salt, there is no expiration date, but please purchase only if you understand that it has been stored at home. ◆ Product Details Himalayan Black Salt, granular type Weight: Approximately 824g (including the bag) ◆ Features Amazing oxidation-reduction power! For mineral replenishment! - Natural black rock salt mined from the Himalayas - Characterized by a unique sulfur-like aroma Type...Salt