What happens next?

How to choose potatoes
Squeeze potatoes for firmness.
The best potatoes are ones that are firm and that don't give when you squeeze them. Getting soft is one of the first indications that a potato is going bad, so avoid potatoes that feel squishy or soft when you squeeze them.
Although soft potatoes are safe to eat if you already have one at home, avoid buying them from the store unless you plan to cook them immediately. Check for cuts and blemishes.