I don’t know if OP is planning for the road trip alone or to have meals throughout the whole trip. I plan to take dishes that freeze well, so that most of the stuff I pack in the cooler helps to keep it cool.
highlandmum wrote: ↑Wed Jul 27, 2022 11:48 am Use block ice as the main source use cubes to fill and add frozen water bottles. They are way better than ice and they last longer. Also when you pack put the containers inside a freezer bag and seal. Keeps the water out. Remember cold air also will drop to the bottom of the cooler so you want the items you need to keep the coldest on the bottom. So for me I do a layer of the block ice (usually I freeze ice in a rectangular container and place the whole thing in the bottom), then the items I want to keep the coldest. Followed by the frozen water bottles, then the cubes to fill the cooler, and foldable ice bags on top (or sandwich bags with frozen water - not the best option but will work) Try to limit the amount of air. I am not a camper but we take coolers to highland games and at the end of the day everything is still really cold, and the ice, and water bottles are still frozen for the most part.