Our Freezer Gel Packs are the most effective way to keep your lunch cold and safe to eat. They are filled with 8 ounces of food grade non toxic gel that freezes solid after 4-6 hours in the freezer. They actually freeze at a lower temperature that water so they keep things colder and last longer than regular ice. Best of all, they don’t turn to water and mess up your lunch like regular ice. They will keep your lunch cold 4-6 hours depending on the outside temperature. It is best not to leave your lunch bag in the sun.
We recommend you place your freezer pack next to the items you want to be kept the coldest. It also helps to keep your lunch in the refrigerator until you are ready to go out the door. Remember to put your ice pack in the freezer each night so you are ready to go every morning. It is helpful to order extras to keep in the freezer. They are reusable, but will wear out in time and start to leak. The residue is totally harmless and can be cleaned up with water. If it is a small tear, it can be fixed with tape, but it is definitely time to order a new ice pack.
Why bother with the freezer pack? Certainly most drinks, and many foods just taste better when cool, but your real concern should be bacteria. Perishable food should be kept at temperatures less than 40 degrees. As the temperature rises above 40 degrees bacteria will begin to grow. The higher the temperature, the faster it will grow. The USDA recommends that food should not be left out at room temperature more than 2 hours (1 hour if the temperature is above 90 °F).