The best food storage option Enjoy the convenience of preserving and storing food for longer with these clever vacuum seal containers made of sturdy, milky white plastic. Create a vacuum inside the containers with a vacuum pump for an airtight seal - the contents will stay fresh for up to 5 times longer without losing taste or vitamins. Liquids can also be stored safely without any leaks. Easy to create a vacuum Store food for longer Perfect for stocking up Dishwasher safe Microwave safe (without lid) With a practical silicone valve Reduces food waste Resistant material Note: A vacuum pump is required to create a vacuum in the containers and an airtight seal.