Mother Earth Living

6 Simple Food Preservation Methods

Learn the simple wisdom of putting food by to keep your household stocked with fresh, nutritious fare year-round.
By Tabitha Alterman
September/October 2012

Fill your pantry with canned, pickled, fermented and other preserved foods to get you through winter.
Photo Courtesy StockFood
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By now, you’ve probably heard about the multiple benefits of eating locally and seasonally—more nutritious food, better prices and better flavor, not to mention supporting local farmers over the industrial farming complex. And while eating seasonally during summer may not present too much of a challenge, things get a bit more difficult as autumn and winter set in. One of the best ways to eat a local, seasonal diet year-round is to preserve some foods during their most abundant time (just look at what’s piled up at the farmer’s market). We humans have preserved food for the lean months for eons as a matter of necessity, and thus we’ve invented a wide array of time-tested ways to keep food around longer, many of them very basic. Here are our top six simple ways to preserve food for winter. Try the recipes we’ve provided as a jumping-off point for experimentation, then look to the extensive resources at the end of this article to learn much more in-depth information on the many methods of food preservation.

1. Preservation Method: Fermentation

With the fascinating science of fermentation, you can control spoilage. In other words, the foods you preserve by fermenting them will technically still spoil, “age” or “ripen,” but they’ll do so with friendly­—even beneficial—microbes rather than hostile ones. Lucky for us, generations of people before us have paved the way, and their secrets are mostly low-tech.

Fermented foods are created by allowing one type of microbe to act on a food substance in order to convert some of its components into alcohols or acids. Alcohols are fermented by yeasts, while most foods are fermented by lactic acid bacteria. Some mold-ripened cheeses are created by the work of fungi, and other cheeses are fermented by the work of bacterial cultures. This family of preserved foods includes some of the world’s greatest culinary treasures, including bread, cheese, pickles, sauerkraut, chocolate, beer, coffee, wine and a whole host of cured meats, to name but a few.

The bacteria, yeasts and fungi necessary to ferment different foods can be naturally occurring or wild, as it was for each of these marvelous foods to have been discovered in the first place. Or it can be purposefully cultured with ingredients obtained via cheesemaking or home brew suppliers. To try fermentation at home, start with the simple recipe for sauerkraut below.

Featured Recipe: Simple Sauerkraut 

2. Preservation Method: Acidification

Many foods last longer if they are simply dunked in a bath of vinegar. Just as vinegar rids dirty clothes and kitchen countertops of infectious germs, it can be put to the same—though tastier—use with fruits, vegetables and herbs. The most famous vinegar-preserved foods are cucumbers (though some cucumber pickles are actually fermented), but many other foods are delicious in vinegar, too—turnips, beets, radishes, carrots, leeks, kale, garlic scapes, Swiss chard, green beans, cauliflower, zucchini, peppers, asparagus, cantaloupe and green tomatoes are just some of the options that are delicious when pickled. From balsamic and apple cider to rice and champagne, a wide world of vinegar flavors awaits. The recipe above provides a supersimple way to preserve fresh cucumbers using acidification.

Featured Recipe: Quick and Easy Nonstop Pickles 

3. Preservation Method: Drying Food 

Dehydrating food makes it less attractive to moisture-loving bacteria. Removing the water also concentrates flavors in a mighty tasty way, and it’s a fitting trick for fruits and veggies of all kinds. Dried foods take up the least pantry space of all the preserved treats you might make, and the benefactors of this technique are limited only by your imagination. Food dehydrators make easy work of drying food, but it’s easy to do in an oven set on low heat, too. Once they’re dried to a crisp, store foods in an airtight container. Some foods, such as plum tomatoes, are also great halfway dried and then stored in oil.

Featured Recipe: Baked Kale Chips 

4. Preservation Method: Root Cellaring

The practice of “putting food by” refers to storing produce for long periods of time, and it is often quite simple. Many foods will last weeks or months if kept in a cool, dark spot. Some foods benefit from being coated first in oil or being stored in a bucket of sand; others will keep when simply set on a shelf. You can build a fancy ventilated root cellar if you’ve got the space, time and inclination, but a cool, dark corner of your garage or basement will probably do nicely.

Read More: Root Cellaring 101 

5. Preservation Method: Home Canning

From simple canned tomatoes to homemade soups, canning is a great way to preserve the peak-harvest flavors of many fresh foods. However, it is extremely important to do it right, so be sure to learn the basics. While canning is simple and safe with the proper instruction, improperly canned foods can make you and your family sick. The easiest method of canning is called water-bath canning, and it’s a great way to preserve acidic foods such as pickles and tomatoes. For nonacidic foods, you will need to rely on the more complex system of pressure canning. We recommend starting with the easier water-bath canning to learn the technique before moving on to pressure canning.

Featured Recipe: Dilly Beans 

6. Preservation Method: Freezing Food

Freezing helps prevent food from spoiling before we’re ready to eat it. Several tricks and tips can improve your freezer strategies. Many foods freeze well, but a few—such as lettuce, cream sauces and whole eggs in shells—really just don’t. Obviously, it’s helpful to know the difference. Some foods, such as blueberries, can be frozen as is; others, such as greens, must be blanched first. To blanch, bring a pot of water to boil, dunk food for a brief time, then pat the food dry and freeze in freezerproof containers. To make efficient use of freezer space, try freezing liquids such as soups in baggies laid flat on a baking sheet. Once frozen, they can be stacked neatly elsewhere in the freezer. You can also fill ice cube trays with sauces such as pesto and then pour the cubes, ready for single-serving uses, into a freezer container.

Read More: An Introduction to Freezing Food 


Find Fresh Food

The best way to discover what’s in season and get great deals on bulk in-season items is to connect with your local farmers. This is easy to do through your farmer’s market. To find one in your area, visit the USDA’s Farmer’s Market Page. You can also check out “How to Find Local Food and Farmers” for a list of handy databases.

Resources

Websites 

Wild Fermentation 

National Center for Home Food Preservation: “How Do I Dry?” 

Drying Fruits and Vegetables 

Food Freezing Guide 

Home Canning Guide 

USDA Freezing and Food Safety Guidelines 

Apps 

Mother Earth News How to Can App 

Books 

The Art of Fermentation by Sandor Ellix Katz 

Back to Basics: Traditional Kitchen Wisdom by Andrea Chesman 

The Beginner’s Guide to Preserving Food at Home by Janet Chadwick 

The Big Book of Preserving the Harvest by Carol W. Costenbader 

Ball Complete Book of Home Preserving by Judi Kingry and Lauren Devine 

The Complete Root Cellar Book by Steve Maxwell and Jennifer MacKenzie 

Food Drying With an Attitude by Mary T. Bell

Home Brewing by John Parkes 

Home Cheese Making by Ricki Carroll 

Independence Days: A Guide to Sustainable Food Storage and Preservation by Sharon Astyk  

Jam It, Pickle It, Cure It by Karen Solomon

The Joy of Pickling by Linda Ziedrich 

Making and Using Dried Foods by Phyllis Hobson

Preserve It! by Lynda Brown

Put ‘Em Up! by Sherri Brooks Vinton 

Recipes From the Root Cellar by Andrea Chesman 

Root Cellaring by Mike and Nancy Bubel 

Tart and Sweet: 101 Canning and Pickling Recipes by Kelly Geary and Jessica Knadler 

Well-Preserved by Eugenia Bone


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