Yes, but you might need extra dehumidification. The CoolBot is running in many seed storage facilities all over the world, and they all want to keep the combined humidity and temperature in Fahrenheit under a total value of "100".
To achieve this, there are a few options:
- Try different temperature settings: You may find that storing at 42F gives you a steady-state of 50% relative humidity, so that's a total of "92"; but, if you drop the temperature down to 35F, you end up with a relative humidity of 70% (putting you at "105"). Try different temperatures and see where you end up. Our experience has been the right number for most people who don't want to use any external dehumidification controls is going to be somewhere between 40F - 50F.
- Keep the room sealed tight: Make sure all gaps and cracks in the cooler are caulked or spray foamed to prevent warm air from entering the cooler. Make sure the gasket around the door keeps a tight seal, and replace the gasket if it is cracked. Warm air carries a lot of moisture that raises the humidity level in the room once it cools down, and even small cracks are constantly bringing in a flood of moisture.
- Minimize door openings: If you have a commercial seed storage facility with a lot of traffic, add PVC door flaps to reduce warm air entry.
- Use a mechanical dehumidifier: It needs to be one that says it works in basements. Be sure your air conditioner is large enough to compensate for extra heat produced by the motor in the dehumidifier.
- Use chemical desiccants:
- Calcium Chloride. This has been the solution for a few people in developing countries where electricity is unreliable. While the quantity of CaCl2 affects the amount of humidity that is removed, the CaCl2 is able to remove twice its weight in moisture and can bring rooms down to 30% relative humidity. We have also heard that it can be dried and re-used.
- We find that Sodium Chloride doesn't work well. Its steady state keeps a relative humidity of 72% at best, so it's not great for seed storage.
For whichever method you choose, be sure to leave space around the product for adequate air circulation!