The best conditions for curing sweet potatoes are:
Upon taking your sweet potatoes from the ground remove the excess dirt without washing. Sweet potatoes, before curing, are tender and subject to bruising. Its best to just shake off the excess dirt because washing might bruise the tubars.
Lay the sweet potatoes out on a flat surface where they can be placed without touching each other.
Maintain the air temperature at between 70 and 80 degrees Fahrenheit.
The humidity should approach 95%
Keep the air continuously circulating. (a small fan works.
Maintain these conditions for seven to fourteen days.
What results do you achieve by curing? Cured sweet potatoes are much sweeter and not as easily subject to bruising as their uncured counterparts.