I don't have any experience at all with beetroots. But a couple days ago, I received some vacuum packed cooked beetroots by post (without special temperature control) as part of a vegetable basket.
They had no instruction printed on the package so I didn't put them in the fridge. Today I went to the supermarket and saw they are actually sold in the chilled section (as with milks and salads).
In general, are they safe to be stored in cool room temperature (20-21 C) for a few days? Or is there a difference between packaging that makes some okay but not others?