Nathanael - I spent five years operating a cross-country ski lodge with a vegetarian menu that catered to special needs diets. It would be easier if I knew what you can't eat
Guar gum. The damn stuff shows up in the weirdest places. It shouldn't really be in ANYTHING, frankly. You'd never put it in a homemade recipe unless you were cooking gluten-free. And it was extremely rare until about 10 years ago. But since then it's been infiltrating the food supply, showing up in sauces, breads, dressings, coconut milk (!!!), ice cream (!!!!),....
Basically anything I bring with me myself is OK. And much of the cafe car food is OK because it has ingredients lists on it. Unfortunately, Amtrak also refuses to provide any list of what's stocked in the cafe cars in advance, so I can't rely on that either.
Anyway at the dining cars, at dinner I can probably have the steak (no sauce, ugh) and the baked potato. Neither of which I actually like. And the vegetables, I guess. At breakfast, if I knew that the eggs were actual eggs from a shell, I could have them, but some pre-made egg mixes have guar gum in them (yeearrrgh), and Amtrak simply refuses to document what they're providing. At lunch, there are potentially zero options, especially since I've seen them fail to stock the salad!
It's quite frustrating and I'm going to try to escalate the problem, but I don't expect any solutions within the next year.
If you have a source of dry ice where you live, I like niemi24's suggestion that dry ice will last a week. You should definitely insulate the dry ice itself, so it will not melt (vaporize) as quickly, and so it won't freeze adjacent food.
That's a great suggestion. I have little enough experience with dry ice that I didn't really know how long it would last....
We tried the typical cold packs (I've had medication shipped with them too), and they're great for about two days but not really for three (perhaps because the trains were being kept very hot, perhaps because my insulated bag isn't insulated thickly enough). I don't want to carry a larger cooler with thicker sides because of space considerations, particularly in the Viewliner.
This is why I was thinking "replenish the cold in Chicago", but if the dry ice lasts longer then I wouldn't have to.
The CVS website says that store's phone number is 312-589-8991. Why not call them and see what ice procudts they have available?
Will do this too.
I always put a wide-mouth, tight, bottle of cold water into my lunch box, no ice. Do you have a
Nalgene bottle that you could obtain ice to fill on the train, then top up with water for better temperature transfer? They are guaranteed leakproof!
Also appreciated as an idea.
If not allergic, you can take seeds, nuts and dried fruit, no refrigeration needed. Then some yogurt, or cheese and crackers (yogurt & cheese really only need to be cool, if you are going to consume fairly quickly). Raw vegetables (replenish the stock whenever possible, carrots, sweet peppers, kolrabi sticks...cool is best, cold not necessary). I've also been known to open a small can of smoked oysters or tuna. And some organic chocolate...
Tried this and other "no refrigeration required" food but it was getting pretty unsatisfactory by the third day!
Anyway, thanks to everyone for very helpful suggestions.