The best things to pack in a lunch box are those that can sit out for several hours without spoiling. Insulated lunch boxes are especially helpful because they can extend the time food can stay fresh inside. “Insulation is always a plus, because it can be hours between the time lunch is packed and when your child will be eating it,” Mazzoni says. “Insulated lunch boxes reduce the risk of food-borne illness due to bacterial overgrowth.” Be sure to read the lunch box label to confirm how long it will keep food warm or cold.  Besu is also in favor of insulated lunch boxes. “I personally like to have the option to keep things warm or cool, so I would opt for one with insulation.” As for storing her lunches, she opts for specific containers. “I am a big fan of the bento box style containers with dividers because it’s an easy way for me to portion out food. There are several on the market made from different materials. I tend to gravitate towards the ones made from metal as they do a better job of insulating, are easier to clean, and last longer—not to mention it’s one less piece of plastic.” Items like fruit, nut butter and jelly sandwiches, chips, pretzels, crackers, dried fruit, and jerky all keep well.