Canned beetroot

Are all canned beetroot, ingredients salt, acid kosher? Do I have to take into account the reused steam in the manufacture process from non-Kosher food as a source of ta’am issur?

If the ingredients are as you say. Beets. Salt. Water. It’s ok. As to acid it’s unclear which so I would need more info.

As to the steam. No problem.

Don’t have any particular item in mind. I was working out supposed the problem of steam in the manufacturing process and concluded as you did that it isn’t a problem.

The acid I haven’t given thought to, which ones would you avoid?

There are some that are derived from an animal source. It all depends on where they are listed in the ingredients.
To be sure just post the exact ingredients.