TLDR: lots of salt and artificial flavourings. But a lot of interesting chemistry goes into it too. There are annealing steps, and many other processes I don’t understand.
My local burger place has Beyond patties as an option. I tried it once and… it’s not for me. The taste is what it is, it tastes a bit different than beef, but it’s by no means bad. Trouble is, my digestive system does not seem to like Beyond burgers . Nothing serious, mind, but whenever I ate a Beyond burger, I got flatulence that lasted for some hours.
The same place also had another vegan patty available, which was, from what I can tell, beetroot, beans and something else mashed together and it was awesome and filling. Unfortunately, they removed it from the menu last year.
Probably the salt. You could test if crisps or popcorn or such have the same effect.
Or try drinking lots of water with it.
