【Easy to Use】: Simply prepare an adequate amount of blue ice boxes and place them in the freezer without adding water. After freezing for 4-8 hours (depending on the freezer temperature), remove the blue ice boxes and add them into your appliance's water tank until it covers the blue ice box.
These lightweight freezer blocks are ideal for outdoor camping trips with a large family, providing ample storage for pre-prepared meals while keeping them frozen during warm weather.
