half day at 140° or so.
Setting Up a Root Cellar
Cool storage areas such as cellars can be outfitted to keep produce fresh for the table throughout the long winter months. A wide variety of foods will stay fresh and delicious if stored in the right conditions—a space that is damp and cold, but not freezing. Typically, 32 to 40 degrees Fahrenheit is ideal for a root cellar environment. This type of food storage is entirely dependent on thermal mass and the natural cooling of outdoor air during the winter, and this isn’t vulnerable to power outages. Traditionally, root cellars are an underground space built under or near the home, insulated by the ground and vented so cold air can flow in and warm air out in the fall. In the winter, the vents are then closed and the cellar maintains a cold—but not freezing—temperature, thanks to the earth’s insulation.
A root cellar doesn’t actually need to be underground, although they often are. Any cool, dark area will do.
How to Store Produce in a Root Cellar
How to Set Up a Basement Root Cellar
Modern basements are typically too warm for long-term winter storage, but you can create an indoor version of a root cellar by walling off and insulating a basement corner and adding vents to the outside to let you regulate the flow of cold outside air into the insulated room. Your goal is to create a small room that is well insulated and will remain near freezing throughout the winter months. Cellar rooms are typically quite humid, so be sure to choose insulation materials that will hold up well in a moist environment.
First, choose a location for your cellar that is as far as possible from your furnace, and near a basement window, if possible. The window is a great place to install a vent—simply remove the window glass, replace it with insulated plywood, and run the vent through a hole in the wood. (You could also run a vent through a basement wall—as you would for a clothes dryer.) Choose a northeast or northwest corner location if you can. The more masonry surface in your root cellar room, the better—masonry walls provide thermal insulation to help create the ideal temperature inside. If a northeast or northwest corner won’t work for your basement, choose the corner with the highest outdoor soil height.
Store only mature , high-quality vegetables in a root cellar: small, cut, bruised, or broken vegetables will not store well and should be eaten right away. Check on your stored foods frequently to see how they’re doing—if the vegetables begin to grow, the cellar is too warm. If they freeze, the cellar is too cold. If the skin starts to look dry or shriveled, the space is too dry. Remove decaying vegetables immediately to prevent rot from spreading to the rest of your food.
To Store Carrots: Cut off greens and wrap them in small groups of newspaper. Bury paper packages in dry sand.
Building a Root Cellar
TOOLS & MATERIALS
Chalk
Eye protection
Ear protection
Construction adhesive
Concrete nails
Powder-actuated nail gun
Drill
Level
Deck screws
Circulating saw
Insect mesh
Sheet plastic vapor barrier
Foam insulation
Stapler
Stick up light
Fiberglass butt insulation
Paneling or drywall
Steel garage service door
Weather stripping
Masking tape
4d finish nails
Glue
Wood screws
Framing square
Sander
How to Add a Root Cellar to a Basement
1 Outline the root cellar wall locations on your basement floor with chalk or a chalkline. Don’t get too skimpy—the foot-print should be at least 4 × 6 ft. to make the project worthwhile.
2 Build 2 × 4 stud walls with a framed rough opening for a door. Anchor the sole plates for the walls (use pressure-treated lumber) to the floor with construction adhesive and concrete nails driven into predrilled holes (or use a powder-actuated nail gun).
3 Use a level to adjust the walls until they are plumb and then secure the cap plates of the framed