Our Silicone Food Grade Reusable Storage Bags come with an advanced sealing technology that ensures a tight seal, making them leak-proof, waterproof, and more hygienic for food storage. They are the ideal solution for a more organized and sustainable kitchen, perfect for keeping a variety of foods fresh, from meats and poultry to fruits and veggies. While they are freezer safe, we suggest you hand wash these durable and versatile bags to maintain the integrity of the double-seal feature. Cleaning is a breeze: simply rinse them out with a bottle brush and prop them on a mug for efficient air-drying.