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Sweet Potato Curing Rig

This is a rewrite, from memory, of a lost blog post that I wrote in 2008 about my sweet potato curing rig.

This was my sweet potato curing rig from a few years ago. It worked well, the sweet potatoes tasted like they should taste and they kept in my kitchen, in a dark cabinet, for almost two years. The last few sweet potatoes from this harvest (2008) ended up in my little sweet potato rooting experiment shown at

The basics behind this rig are the things that you will want to achieve and they are:

  1. A source of warmth that is not too hot.
  2. An airy enclosure

That’s about it.

Source of warmth: I used an old space heater. To make sure the inside of the curing rig didn’t get too hot, I placed a thermometer inside the box and checked it periodically throughout the first day. Based on the temperature, I adjusted the space heater to maintain a temperature of around 85 degrees or a little higher.

An airy enclosure: As you can see, I used a large box. I layered the potatoes by placing large sheets of paper between each layer. It was all very loose. Before I put the sweet potatoes into the box, I cut 3 or 4 1-inch round holes in the bottom of the back of the box. At the front of the box, I cut the opening that would allow the warm air to enter the box. The cut for this warm air was the shape of a capital I so that it would have a flap on each side to better contain the air flow.

I placed the heater at what I hoped would be a safe distance and set two large cookie sheets on either side and a piece of wood (that I had laying around) on top for a lid. The top of the box was closed and I laid a towel over it.

The sweet potatoes stayed in this box for 10 days after which I removed them and stored them somewhere else. I do not have a proper storage area, so I placed them somewhere handy, in a kitchen cabinet.

Some of the follow up questions that were in the old blog post:
Do sweet potatoes really need to be cured?
Answer – yes.

How do I know when to pick my sweet potatoes.
Answer – dig them up shortly before your first hard frost. If the plants die from frost, dig them up that very day. This answer is not a thorough guideline for when to dig up the sweet potatoes, google the question for more details.

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  1. says

    Two years!! Oh my goodness. I would have never known – very interesting. Sounds like a great science endeavor