If you are looking for plastic sandwich bags, you may want to consider using durable plastic food bags instead. These bags are specifically designed for use in the food service industry and are FDA-approved for safe food storage and handling. They are also heat-sealable and available in a range of sizes to fit your needs. Heavy-duty plastic food bags are perfect for storing a variety of food items, including sandwiches, and are a more durable and sustainable option than single-use plastic sandwich bags.