Closest thing to curd?

It was de-hydrated, not hydrated, lol.
I don't know why my previous posting was double posted.

qs]I've never heard of 'zara-tofu'

My bad. It's actually written "zaru tofu" (as found on Google when searching for "soft tofu" - may be totally wrong).

Kinugoshi 絹（きぬ）ごし

Thanks. I think I will go with noting down only the kanji characters. They seem to be a whole lot shorter than kana :-)

You might find tofu in the ready-to-eat tetra brick pack in the city supermarket that you can take anywhere good for traveling and no need to refrigerate.

That would be the preferred packaging solution. Thanks.