What to Do with Green Tomatoes (Ripening, Canning, Dehydrating, Freezing, and More!)

How to Ripen, Can, Freeze, Ferment, Dehydrate Green Tomatoes

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When you live where the weather is cool enough that ripe tomatoes are never a certainty (as I do), you do everything you can to help your tomatoes ripen. But you also learn that while ripe, red tomatoes are a prized crop, unripe green tomatoes are just as valuable. Try as I might to get large crops of ripe tomatoes, each year, I grow far more unripe, green tomatoes. And in the fall, if large amounts of rain are expected (which causes tomatoes to split), or if the first hard frost is predicted, I harvest every single green tomato before they are damaged by the weather. I can make excellent use of them - and so can you!

First, What About Ripening Green Tomatoes?

The first thing you should consider is whether or not you want to ripen green tomatoes indoors. It's easy to do, and makes the harvest last much longer. (Via indoor ripening, I've had fresh tomatoes for Christmas.) The downside to this is, despite what some influencers are saying on the social media, tomatoes ripened off the vine are not as good as those that are ripened on the vine. However, they are certainly better-tasting than store bought tomatoes!

There are a few different ways to ripen tomatoes, but I go with what I feel is the easiest: I lay the tomatoes out in a single layer, away from direct sunlight. (It's temperature, not sunlight, that ripens tomatoes; letting tomatoes sit in the sun seems to make them spoil more quickly.) If I have room to do so, I prefer to put the tomatoes in a darkish location, like a pantry shelf. Otherwise, I lay them out on my kitchen counter or a large table.

Ripening tomatoes indoors.

The shallow boxes canning jars are sold in are excellent for storing green tomatoes as they ripen.

Are Indoor Ripened Tomatoes Safe to Preserve? 

It's worth noting that some Extension offices don't recommend using indoor-ripened tomatoes for canning, because "the proper acidity may not develop." On the other hand, the USDA and The NationalCenter for Home Food Preservation recommend that vine-ripened tomatoes are only "preferable" for canning.

Also note that if you let tomato plants get killed by frost, the tomatoes left on the vine are fine for cooking and baking, but they are not safe for canning, due to changes in acidity. Finally, tomatoes that show signs of disease (such as late blight) are not safe for canning. However, if the plant is diseased but the fruit itself show nosign of disease, they are safe for canning.

Preserving Green Tomatoes

There are lots of good ways to preserve green tomatoes. My favorite method is canning, simply because there are so many delicious recipes out there for canned green tomatoes. In addition, you can safely substitute unripe, green tomatoes for tomatillos in any canning recipe. 

Green Tomato Mincemeat

Green tomato mincemeat pie filling.

This is my family's absolute favorite green tomato recipe. It makes a truly scrumptious pie filling or basis for a cobbler or crisp. This recipe comes from the National Center for Home Food Preservation and makes about 7 quarts. (I use two quart jars for each pie.)

4 quarts chopped green tomatoes

3 quarts peeled and chopped tart apples

1 lbs. dark seedless raisins

1 lb. white raisins

1/4 cup minced orange peel (from about 1 medium orange)

2 cups water

2 1/2 cups brown sugar

2 1/2 cups white granulated sugar

1/2 cup white vinegar (5% acidity)

1 cup bottled lemon juice

2 tablespoons ground cinnamon

1 teaspoon ground nutmeg

1 teaspoon ground cloves

1. Combine all the ingredients in a large saucepan placed over medium-low heat. Cook and stir often, until the ingredients are tender and slightly thickened (about 35 to 40 minutes).

2. Ladle hot filling into hot quart jars, leaving 1/2-inch headspace. Process in a water bath canner for 15 minutes.*

 

This mincemeat makes a scrumptious pie!

Green Tomato Salsa

Green salsa.

This is a very good, mild salsa from the University of Main Extension Office. My family likes it as a change of pace in tacos or taco salad, or over enchiladas. Makes about 5 pints.

5 cups chopped green tomatoes (unpeeled or peeled)

6 cloves garlic, finely chopped

1 1/2 cups chopped long green chilies (remove the seeds for a mild salsa, leave them for a spicier salsa)

1 tablespoon ground cumin

1/2 cup chopped jalapeno peppers (with seeds for a hotter salsa, seeds removed for a mild salsa)

1 - 3 tablespoons oregano leaves

4 cups chopped onions

1 tablespoon canning salt

1 cup bottled lemon or lime juice

1 teaspoon black pepper

1. Combine all the ingredients in a large saucepan and place over high heat, stirring often, until it boils. Reduce the heat and simmer 20 minutes, stirring now and then.

2. Ladle into hot pint jars, leaving 1/2 inch headspace. Process in a water bath canner for 15 minutes.*

 

Green Tomato Slices

If you love fried green tomatoes, or use green tomatoes in various savory dishes, give this recipe from the University of Main Extension Office a try.

Wash green tomatoes, core them, and slice. Pack into pint canning jars, adding 1 tablespoon bottled lemon juice or 1/4 teaspoon citric acid, to ensure safe acidity. For quart jars, add 2 tablespoons bottled lemon juice or 1/2 teaspoon citric acid. Cover the tomatoes with boiling water, leaving 1/2 inch headspace. If desired, add 1/4 teaspoon canning salt to each jar. Process in a water bath canner: pints for 40 minutes, quarts for 45 minutes.*

Green tomato relish.
More canning recipes for green tomatoes:

Spiced Green Tomatoes from The National Center for Home Food Preservation

Pickled Sweet Green Tomatoes from The National Center for Home Food Preservation

Kosher Style Dill Green Tomato Pickles from The National Center for Home Food Preservation

Pickled Green Tomato Relish from The National Center for Home Food Preservation

Green Salsa from The National Center for Home Food Preservation

Rummage Relish from The National Center for Home Food Preservation

Tangy Relish from The National Center for Home Food Preservation

Piccalilli from The National Center for Home Food Preservation

Fall Garden Relish from The National Center for Home Food Preservation

Kosher Green Tomato Pickles from So Easy to Preserve (by The University of Georgia Extension)

Green Tomato Relish from So Easy to Preserve (by The University of Georgia Extension)

Green Tomato Salsa from the Ball Blue Book (37th edition)

Green Tomato Relish from The Ball Blue Book (38th edition)

Green Tomato Hot Pepper Mix from The Ball Blue Book (38th edition)

Dilled Green Tomatoes from The Ball Blue Book (38th edition)

Escabeche from The Ball Blue Book (38th edition)

Thai Green Tomato Chutney from The All New Ball Book of Canning and Preserving (also in The Ball Complete Book of Home Preserving) 

Green Tomato & Hot Pepper Pickles from The All New Ball Book of Canning and Preserving   

Dilled Green Tomato Pickles from The Ball Complete Book of Home Preserving

Green Tomto Relish from The Ball Complete Book of Home Preserving

Green Chili Sauce from The Ball Complete Book of Home Preserving 

Chow Chow Relish from The Ball Complete Book of Home Preserving

Minced Mustard Pickles with green tomatoes from The Ball Complete Book of Home Preserving

Piccadilli Relish from The Ball Complete Book of Home Preserving

Salsa Verde from The Ball Complete Book of Home Preserving

In addition, the USDA Complete Guide to Home Canning says: "Green tomatoes are more acidic than ripened fruit and can be canned safely" in place of red, ripe tomatoes in recipes that call for tomatoes by themselves. Just be sure to peel the green tomatoes (with a soft skin peeler) if the recipe calls for peeling.


Freezing Green Tomatoes

If you prefer to freeze your harvest: Wash and core green tomatoes, then cut into cubes or slices. Spread out the prepared tomatoes in a single layer on a rimmed baking sheet, then pop them in the freezer. Once the tomatoes are frozen hard, transfer them to a freezer bag. Frozen slices can be dipped in flour and fried without thawing first.

Dehydrating Green Tomatoes

Dried green tomatoes are handy for desserts or savory dishes. Begin by peeling and coring the tomatoes, then chop them into cubes 1/2 inch or smaller. Dry at 140 degrees F. When you can tear a piece apart and no liquid seeps out, the tomatoes are done. Store in a glass jar with a metal lid and store in a dark, cool location for up to a year. To rehydrate, cover the tomatoes with water and allow to soak for about an hour.

Fermenting Green Tomatoes

Fermented green tomatoes. Photo by .

If you want to get some good probiotics in your diet, you'll be happy to know green tomatoes ferment well. As with all fermenting projects, be sure to freshly wash everything (your tools, your containers, your fruit, and your hands) before beginning.

4 cups distilled water

2 tablespoons fine sea salt

1 1/2 lbs green tomatoes, quartered (the tomato pieces should all be about the same size)

4 medium hot peppers, sliced 1/4 inch thick (optional)

6 medium garlic cloves

1. Warm 2 cups of the water in a saucepan placed over medium heat. Add the salt and stir until the salt dissolves. Remove the pan from the stove and allow the water to completely cool.

2. Place the prepared tomatoes in a quart-sized jar. Add the peppers (if using) and garlic. Pour the cooled brine over the vegetables. Pack everything in tightly. The vegetables must be completely covered with the brine.

3. Place a fermentation weight over the vegetables, as well as a burper. If you have neither, you may use a jelly jar filled with marbles as a weight, then cover everything with cheesecloth to keep bugs out. Place the quart jar in a bowl, in case liquid overflows during fermentation. Place in a location out of direct sunlight.

4. In about 14 days, taste a tomato (using a freshly washed fork). If you like the flavor, remove the burper and weight, cover the jar with a plastic or metal lid, and store in the refrigerator. If you think the tomatoes need more fermenting time, leave them for up to 6 weeks or so, tasting every few days until you like the flavor.

 

Cooking and Baking with Green Tomatoes

You can also use up your green tomato crop right away by using them in savory or sweet dishes.

* Green Tomato Pie (tastes just like apple pie!)

Green tomato pie tastes like apple pie!

* Green Tomato and Corn Slaw 

* Green Tomato Enchilada Sauce

* Green Tomato and Bacon Soup

* Roasted Green Tomatoes

* Green Tomato Stew

* Green Tomato Catsup 

* Green Tomato Chili

 * Green Tomato Casserole 

* Green Tomato Cake 

* Green Tomato Cornbread

* Oven or Air Fried Green Tomatoes (or traditional Fried Green Tomatoes

* Green Tomato Bread 

* Green Tomatoes Parmesan 

* Salsa Verde 

* Green Tomato Jam (not for canning; keep in the freezer or refrigerator) 

 

SAFETY NOTE:  

While millions of people have eaten green tomatoes without negative side effects, and while neither the USDA nor the Extension offices have expressed concern about canning or eating green tomatoes, Ball points out that unripe green tomatoes can contain something called solanine, which, if eaten in large quantities, can be toxic. If you want to be extra careful, Ball recommends only eating darker green tomatoes, saving pale green ones (which, they say, are higher in solanine) for off-the-vine ripening.

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