It is important to prevent oxygen and moisture from leaking into these packaging as these can go bad very easily. As such the packaging requirements for these products would require a strong barrier. Furthermore, customers typically want to be able to see these products so these packaging tends to be transparent in nature. For those meant for cooking or used progressively, they require a resealable zipper and that is where our customizable pouches come in hand and allows us to keep the unused bits in the fridge for future use.