Get a head start on dinner by preparing your Freeze 'N Steam™ bags in advance. Simply fill the bag, season your food, vacuum seal, store in the freezer or refrigerator and microwave when needed. Multi-ply construction blocks moisture and oxygen and makes the bags strong enough to microwave! • 16 pre-cut bags (950ml) • Ventilated, stand-up design for easy filling and microwaving • Multi-ply material prevents freezer burn • BPA-free • Microwave-safe • Includes a table with cooking times for different types of food.