date:Sep 06, 2012
between 40 and
140 F, so perishable food transported without an ice source will not stay safe long. Insulated, soft-sided lunch boxes or bags are best for keeping food cold, but pack at least two ice sources with perishable food in any type of lunch bag or box you use. You can use two frozen gel packs that are 5-by-3 inches or larger, or combine a frozen gel pack with a frozen juice box. When packing your bag lunch, place the ice sources above and below the perishable food items to keep them co