2 days.

Tuotuo bun is a traditional Chinese noodle dish made from flour, water and starter culture. Since Tuo Tuo steamed buns contain high amounts of moisture and flour, and no preservatives are added, their shelf life is relatively short. Tuotuo buns can be kept at room temperature for 1 to 2 days. Beyond this time, the buns will easily become hard and dry, and bacteria will breed, causing food safety issues. To ensure the freshness and safety of food, eat it as soon as possible after purchase or store it properly. You can choose to refrigerate or freeze it to extend its shelf life.