You are confusing potatoes with sweet potatoes. Curing sweet potatoes
consist of laying then out where they will be in the heat (80 degrees - not
the sun - winter squash go into he sun) and high humidity (80 + percent) for
10 to days (longer if you cant match either of those conditions - add
another 5 or so days). That turns the starch to sugar.

Then store them as close to 55 degrees as possible (mine stay at 65 to 70
degrees F). If they get colder like in a frig, the sugar will turn back
into starch and will not go back to sugar again.

I just dug my first box of sweet potatoes yesterday, and will get the rest
before the first frost. Here is a question for the group. If we get a
surprise frost over night, how long after the sun comes up do I have to rip
all the greens of the top before the potatoes are ruined?

Dwayne