The Hamilton Beach NutriFresh easy-fill quart size Bags feature a freestanding, expandable-bottom design that stands up on the counter for easy filling, especially convenient when adding liquids. Compatible with Food Saver, Weston and other vacuum sealer systems. Easily add sauces, marinades, soups, smoothies and other liquids and foods without making a mess. The Bisphenol-a (Bpa)-free bags are safe for freezer, refrigerator and for sous vide cooking. Cook perfect steaks, lamb, pork, eggs and other foods in these bags in the sous vide cooker. The bags maintain freshness by keeping air out and preventing freezer burn. Vacuum sealing can help to reduce food waste, a major global problem by keeping foods fresh up to 5x longer, and helping you save up to 2,275 per year . These vacuum sealer bags are great for preserving fresh produce, meat bought in bulk, leftovers, foods and beverages for travel and more. The 2-ply, 3 mil construction resists tears and punctures.