Though the ingredients are largely not recognized for their nutritional value, packaged mochi ice cream is still a popular snack. While the packaging is relatively secure and safe from outside damage, the ingredients can grow mold and expire if it's left untouched for too long. Manufacturers provide a shelf life for their products and will provide a date for when the product expires. That date never changes, but it is based on the amount of time the product was stored at the manufacturer's location. In this case, the shelf life is typically 8-12 weeks. The expiration date is not the same as the expiration date provided by the manufacturer. A manufacturer's expiration date is typically at least 6 months after the product was manufactured. If you are unsure of the expiration date or have questions about the product, it is recommended you contact the manufacturer to obtain the expiration date.