Originally Posted by galvestongrl
Not sure how to proceed. Our trip is to Estes Park in 2 weeks, so it should be much cooler there than in Texas.
Food-borne illness is nothing to mess around with. Since the freezer seems to be working just fine (18°F isn't as good as 0°F, but it's good enough), suggest using blue ice packs to supplement the fridge. Carry double the number you need, so that you have one set cooling in the freezer while the other is helping the fridge. And pre-cool everything at home in your home fridge before putting it in the Airstream fridge when loading up, so the fridge only has to keep the food cold, rather than having to work on getting
Also, try to keep the fridge as full as possible while still allowing air to circulate inside. The more thermal mass you have, the better. Cold food and water stay cold longer than cold air.
If you can limit the fridge to just beverages, that's even better. The difference in safety between a 49°F soft drink and a 36°F soft drink is negligible. Carrying nonperishable foods in the cabinets is safer than relying upon refrigerated perishable foods.