if you make your own onigiri or get them from a restaurant where they are made fresh it should be ok. in 30 years i have not seen malt vinegar or ever had problems with the vinegar there.
usually its all rice vinegar and mirin -- also if you look for a place that has juwari soba -- 100% soba with no wheta, thats something you can enjoy -- just have your own sauce or use soba yu for the sauce. when I hike i just bring dried and fresh fruit and sometime onigiri. have a great trip
Hi and thanks! Yes, I have learned how to say it, and we will have a native Japanese speaker with us most of the time.
I have heard such conflicting things about the onigiri... I would love them to be safe because we'll be all over the place and I have a bad habit of getting hangry when I don't eat. Also because they sound kind of fun....
The other thing I am concerned about is vinegared rice. Is that only for sushi? And do people know which kind of vinegar they use?
I am also hoping that the OP found good stuff to carry along, since we'll be hiking some as well, and will need to carry at least the food I know I can eat.