How to choose the best:
Sweet Potato

AKA: YAM

Touch

Look for a totally firm yam — any sweet potatoes that are squishy or soft at all should be avoided.

Another good sign is the skin, which should be totally taut over the spud’s surface, so avoid any wrinkly specimens.

See

Look for a nice consistent color across the outside of the sweet potato.

Some more details:

How to store

Yams thrive in a cool, dark environment. Think the inside of your cabinets.

When it's in season

Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.