Keep your cooler cold: fill a gallon milk jug with water and 1/4 c salt. Freeze. Pack into your cooler and it acts as an ice block that won't melt all over your food! #Prepper
Like your fridge, your cooler should stay below 40˚F if you’re hauling perishable food. If you’re going to be relying on your cooler for an extended amount of time (road trip, camping), it’s a good idea to toss in a fridge thermometer so you know how cold your cooler is.
Camping tip..Keep your cooler cold without the slushy water. Fill a gallon or half gallon jug with water. add 1/4 cup table salt to the gallon or 1/8 cup to a half gallon . leave an inch of room at the top of the jug for expansion and freeze. place in your cooler instead of an ice bag,,