How long will it take for a store bought poi to turn sour?

The shelf life of store-bought poi typically ranges from 1 to 2 weeks when refrigerated. Once opened, it can spoil more quickly, often within a few days due to its fresh ingredient nature. Signs of spoilage include an off smell, changes in texture, or mold growth. For best quality, it's advisable to consume it promptly or freeze it for longer storage.