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I’ve heard these lunchboxes help

Dry ice in a cooler might help, but keep foods that aren’t meant to be frozen from contacting the ice. Failing that, a job from a company that pays a decent per diem would also work.

You can buy small fridges that run off 12V. You might be able to use in the car, might have an auxiliary power socket in the trunk/boot.

Also, get an insulated food bag or box, and keep things cool by putting in a freezer block, a thing you freeze overnight.

Get a quality cooler. Make and freeze some soup in mason jars and use them as ice packs in the cooler (works with other frozen meals as well). You can even just freeze water. Pack sandwiches, hard cheeses, fruit, yogurt, ready to eat oatmeal in the cooler. You can also bring nuts, granola, etc. Eat in order of perishability. Most hotels have a mini fridge and even a microwave in the room.

How many days are you away from home? Boat shops sell some really good coolers - throw a whole of ice in there and you might get several days of use out of it. In some countries bags of ice are easy to find in grocery stores, in other parts of the world the shops that sell bait to fishermen are worth looking out for.

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It took me years to finally admit it, but Yeti builds a damn good cooler. I bought a Roadie 24 (their smallest hard cooler), and it keeps ice in the middle of the NC summer for a week.

With any cooler, though, pre-cooling is important. Load with ice the night before you need to use it, and then dump the water/ice and replace with new ice. The new load of ice won't be wasted in getting the temperature down, just maintaining it.

Easily 4-5 days, hotels back to back. And these are cheap hotels, you get a bed and a bathroom and that's it. Most of the times not even a TV, so working with very limited resources.

Thanks, that's some great advice. Does it really last for days? That's the kind of cooler I need.

3-4 days of ice easy, even without pre-cooling. The other thing I like about the smallest Roadie is that there's no drain valve - I had an Engel before, and it always leaked a little bit.

It's called a cooler, ice blocks last longer

I have an Igloo with a drain. It doesn't leak, but the wall is thinner there and it sweats condensation.

If the allowance is so small, what is the cost of bags of frozen ice then? This in combination with the cooler that other posts have mentioned would be really effective. Otherwise you could buy the freezer blocks to keep the food cold and recharge them at the various hotel freezers that you will be at - though I think most hotels only have fridges and not freezers.

But what happens on day four of staying in a hotel with no freezer? When the ice blocks have thawed and are room temperature?

Buy another block, that's just camping these days if you want fresh eggs, etc

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