about p>1 to 15 days. Pork rolls with seaweed are a kind of delicious food with high flour and fine sugar as the main ingredients. According to different brands, it is stored in different ways, and the shelf life is usually about 1 to 15 days. Because of the short shelf life, the seaweed floss roll should be placed in a ventilated and dry place and eaten as soon as possible after opening.