Incredible Cast Iron is a Garage Sale Treasure Just Waiting to Be Restored
When my son Dan moved to his first apartment recently, it seemed like my parental duty to provide some basic kitchen tools. These necessities included several good cookbooks, some sharp kitchen knives and a well-seasoned Dutch oven.
Dan’s is a cast-iron, 10-inch Lodge-brand oven that can be used both indoors and outside. It is the same brand, make, model and size of oven I have used at least weekly for nearly 30 years. When I bought my new oven, it seemed expensive.
But Dan’s oven was free because it was slightly rusty and dirty from being stored in an old garage for years. A little elbow grease restored the cast iron to like-new condition.
If you are a recycler and you frequent garage sales and thrift stores, keep an eye out for good, useful cast-iron cooking implements. Somebody’s rusty, dust-covered survivor of a failed camping trip may end up becoming a valuable addition to your cooking tools.
When properly seasoned, cast iron can be virtually nonstick. The even heating and heat-retaining ability make cast iron a good choice for frying, searing, baking and cooking stews, gumbos and soups.
But buy quality pieces, because your cast-iron cookware can be with you for generations. I still regularly use my grandmother’s 1918 skillet. My daughter, Mary, already has dibs on an 80-year old, 6-inch skillet she cooks eggs in. When it comes to quality, experts know that some experienced iron may be superior to what’s on the store shelves. But the buyer of used cast iron had better beware.
Start by looking the piece over carefully. Dirt, dust and light rust are generally not a problem, but deep rust pitting might be. If the piece has been painted, or has any cracks, pinholes, warps, scratches or signs of abuse, don’t buy it.
Then check the quality of the casting. Look for uniform thickness in the sides and lid, because variances in thickness could cause hot or cold spots. Make sure lids fit tightly, with no gaps or rocking. A properly fitted lid forms a seal that creates pressure while cooking and helps retain moisture.
Once you buy a used piece, it will probably need to be seasoned. Seasoning is the black patina that protects the metal and makes it nonstick. If the seasoning looks even, with no flaking or rust spots, then a good cleaning may be all that is needed before using.
But most likely, you’ll have to re-season, and there are different ways to accomplish that. My brother, Michael, salvaged a badly mistreated oven by soaking the cast iron overnight in a popular soft drink, then scrubbing it with a steel wool pad. When he was done, the cast iron looked brand new.
Avoid cooking any tomato or bean products in a newly seasoned cast iron for the first few times, because the acid will remove the seasoning. After that, use your new, experienced cast iron whenever possible. The more you use it, the more seasoned it gets and the better it will work.
The Central Oregon Dutch Oven Society, based in La Pine, Or., provides these guidelines for seasoning cast iron cookware.
Scrub off any dirt or dust. A stiff fiber or wire brush works well for this initial cleaning.
Remove the old seasoning so bare metal is visible. Start by rubbing the iron with steel wool. If necessary, use light sandpaper. In extreme cases, take a particularly challenging piece to an auto body shop and have it sandblasted.
Once you get to shiny metal, wash and dry the piece. Then, lightly coat the surface with vegetable oil so it is shiny but the oil doesn’t puddle. I prefer solid shortening for seasoning, but there are also commercial products available.
Place the cast iron in a pre-heated 350-degree oven and bake for about an hour. This is going to be smelly and smoky, so if you have a gas grill, do this outside. Put the piece upside down on the grill and lower the hood. Shut off the heat when the smoke stops, and let the grill and cast iron cool completely. This technique can be repeated until you get the preferred shade of black and level of nonstick.