Paper bowls themselves do not have a shelf life in the same way that perishable food items do. However, the packaging for paper bowls, such as the paper itself or any coatings or printing on the bowl, can degrade over time if not stored properly.
Paper products are sensitive to environmental factors like moisture, heat, and light. If paper bowls are exposed to high humidity or moisture, they can become soggy and lose their structural integrity. Likewise, exposure to extreme heat or prolonged sunlight can cause the paper to become brittle and discolored.
To ensure the longevity and quality of paper bowls, it's essential to store them in a cool, dry place away from direct sunlight and moisture. If stored correctly, they can remain usable for an extended period. However, if paper bowls have been exposed to adverse conditions, it's a good idea to inspect them for any signs of damage or deterioration before using them, especially if you plan to use them for serving food.