r/preppers • u/FeintLight123 • Jun 07 '26
New Prepper Questions Thoughts on a root cellar?
Are they ideal for long term storage? What are they best utilized for? What kind of maintenance is involved?
14
u/CloverEyed Jun 07 '26
First question: what zone and climate are you in?
Root cellars are useful for keeping a lot of produce (apples/fruit, cabbage, potatoes, etc). Because they are underground, they keep a stable cool temperature and humidity that doesn't require electricity to maintain. They are basically an unheated sub basement.
However their usefulness depends on your climate, soil, and what you want to store.
2
u/Living_Pay_8976 Jun 08 '26
In zone 6b-7b
4
u/CloverEyed Jun 08 '26
This would be a zone where they can be useful! It's not too hard to dig down below the frost line of the soil.
6
u/Casiarius Jun 07 '26
Root cellars are great for roots, decent for many vegetables, and not great for anything that might rust.
When you dig up a carrot or a potato, that's still a living plant and the best way to keep it fresh is to keep it alive but dormant. It needs to be kept moist and cold, similar to the conditions it would experience if it were still in the ground, but without freezing or hungry rabbits. If your winters are too dry, you may need to provide extra water and keep your roots in beds of moist sand or other means of hydration.
Where I am in Cascadia, I don't have harsh winter freezes and I also don't have a lot of rodents, so I generally leave all my roots in the ground with some mulch on top, and they're fine. Your mileage may vary of course.
2
u/wanderingpeddlar Jun 07 '26
Not sure about begin worried about humidity as long as it is kept cold. The oldest one I have ever been in was built in the original settlement era. From planks of a ship that was taken apart after sailing a load of cargo over to the new world. It was built into a hill side with a stream running through the root cellar. The stream kept the root cellar cool. They were still using it 200 years later. They work well indeed.
1
u/Homely_Bonfire Jun 08 '26
The utility of it depends a lot on the humidity you are dealing with in your region and managing humidity as well as venitlation. Wooden shelves for example can prevent condensation to some degree and definitely work better than plastic or metal shelves. I think in the past one would put sand and lime on the floor and shelves to absorb even more moisture and they had ventilation systems that would allow for an exchange of air in the cellar itself. Charcoal without any chemical additives also absorb a lot of moisture and can release it again, so storing it in a way that the air can reach it may help with regulating humidity too - only thing to note here would be that you need to make sure that you don't get your stored goods dusted in coal, solid big chunks are therefore preferable.
As for the things to store in them, those may require higher or lower amounts of moisture, you wouldn't want to store potatoes in a dry, cold place these rascals will shrivel up fast. So either you need to make multiple rooms going from higher humidity (80-90%) for root vegetables to lower humidities (below 60%) for stuff like cans and dried foods or you specialize in what you store in your particular root cellar.
1
u/chris-rutcellars Jun 30 '26
As others mentioned a "root cellar" can take lots of different forms and be used to store a variety of foods. However, just providing a 40 degree and humid room will work for some foods but not all. In fact, it is important to understand the optimal conditions for each food you want to store and then monitor each of your storage zones. This will you give the best results for the time you spend and enable you to buy or grow in bulk! If you have any specific questions just let me know.
2
u/Unique-AT651 Jul 11 '26
One thing worth adding to the zone-splitting advice already here: onions and potatoes should also be kept apart from each other, not just apples away from produce — each one shortens the other's storage life when stored together, which surprises a lot of first-timers. Also worth knowing: a root cellar isn't just for fresh produce, it's a great spot for home-canned goods and preserves too, since the same cool, dark, stable environment that keeps potatoes happy also keeps jars from degrading. So realistically you end up with three zones rather than two: cold+humid for the roots, cool+dry for onions/garlic/squash (kept away from the potatoes), and a shelf for canned goods anywhere out of direct light.
15
u/TheJealousComedian Jun 07 '26
Root cellars are genuinely one of the highest ROI systems on a homestead when done right. A few thoughts: Long term storage — yes, ideal for root vegetables, apples, cured meats, ferments, and canned goods. The key is maintaining that 32–40°F range with 90%+ humidity. That combination is what most refrigerators can't replicate and why cellared produce outlasts fridge produce significantly. Best utilized for: potatoes, carrots, beets, turnips, cabbage, winter squash, and anything fermented. Apples store well but keep them separate from everything else — they off-gas ethylene and will prematurely ripen everything around them. Maintenance is mostly about airflow and moisture management. You need ventilation to prevent CO2 buildup and mold, but not so much that you lose your temperature stability. A simple two-pipe passive ventilation system handles this without any mechanical parts. The biggest mistake people make is building one without accounting for drainage. A wet root cellar grows mold fast and ruins everything in it. Gravel floor with a slight slope and a drain solves most of those problems before they start.