I thought all plain ready salted crisps were gluten free because all they contain are potato, salt and vegetable oil. It’s the flavoured ones that can contain some wheat flour according to the Coeliac people.
Depends how sensitive you are. I tend to stick to ones that say gluten free or if they are plain and I’ve tested them.
The production lines can be contaminated. The same is the case for various gluten free foods such as buckwheat and polenta. If you are very sensitive it ruins your day.
Salt and vinegar are generally a no-no for most brands. I’ve had trouble with walkers, kettle chips and some others that seem ok.
I make my own since I found this recipe using the microwave do not eat often but like you found walkers were going downhill and own brand hit and miss I use a mandolin to slice the potato. I also turn halfway through.
1 tablespoon vegetable oil (I found that too greasy and use 1cal fry light)
1 washed potato, sliced paper thin (peeling is optional)
1/2 teaspoon salt, or to taste
Pour the vegetable oil into a plastic sandwich or freezer bag. Add the potato slices, and toss to coat.
Coat a large dinner plate lightly with oil. Arrange potato slices in a single layer on the dish. (I use a microwave bacon crisper as my plates are not microwave proof being bone china
Cook in the microwave for 3 to 5 minutes, or until lightly browned (if not browned, they will not become crisp). Times will vary depending on the power of your microwave. Remove chips from plate, and toss with salt (or other seasonings). Let cool. Repeat process with the remaining potato slices. You will not need to keep oiling the plate.
My tip do not overlap times vary but they are well worth the effort.
My friend makes them with sweet potato. I just stick to plain old spuds with a couple of grinds of rock salt.
You could be right there you know my sister in law tried it and she found it a disaster. Don’t do it often however I do when the little ones were here less processed food