More than a billion tons of food are wasted annually. Over half of the 1.05 billion tonnes of food that were thrown away in 2022 came from families, according to the UNEP Food Waste Index Report 2024. In addition to being a waste of money, food waste has an enormous adverse effect on the environment, as evidenced by greenhouse gas emissions and the loss of land and water resources. Fortunately, using simple food preservation techniques at home can significantly reduce this waste and its environmental footprint.

The good news is that, with the correct food preservation methods, food waste may be completely avoided at home. These techniques help you save money and lessen your carbon footprint, in addition to extending the shelf life of your goods. Let’s examine the best food preservation techniques that you may begin utilizing right now.

1. Refrigeration and Freezing

Although it may seem obvious, proper refrigeration is essential to food preservation. Depending on the item, you may prolong the life of perishables by two to six times by keeping your refrigerator at 4°C (40°F) and your freezer at -18°C (0°F).

For instance, plants like spinach remain fresh for days beyond their typical expiry period, while milk that is stored properly lasts a week longer. Store leftovers in closed containers, place raw meat on the bottom shelf, and don’t pack the fridge to capacity; airflow is necessary!

Also Read: Lab-Grown Food Could Hit UK Shelves Within Two Years

2. Pickling and Fermentation

Pickling is an effective way to make fruits and vegetables and even eggs still usable months from now; it’s not just used to preserve cucumbers. Fermentation brings about organic probiotics that are great for maintaining intestinal health.

Proper storage can extend the shelf life of foods such as kimchi, sauerkraut, yogurt, and kombucha by months and years. They enhance immunity and digestion and taste great, too!

3. Drying and Dehydrating

Drying extends the shelf life of food by up to a year by eliminating water, which is the primary cause of spoilage. As one of the oldest food preservation techniques, it allows herbs, tomatoes, and even meats to be dehydrated or dried for later use, while fruits like bananas, mangoes, and apples make great dried treats.

You don’t need expensive equipment; many things may be dried in the sun or even in an ordinary oven set to a low temperature.

4. Vacuum Sealing

The oxygen that leads to freezer burn and food spoilage is drawn out by vacuum sealing. Vacuum sealing can extend the shelf life of cheese, chopped vegetables, and marinated meats by three to five times.

Now that these devices are more reasonably priced, a lot of individuals utilize them for meal preparation and bulk storage.

Also Read: Sustainable Solutions: Transforming Food Waste Into Sustainable Bioplastic

5. Canning (Water Bath & Pressure)

A tried-and-true approach is canning, particularly for products like soups, beans, sauces, and jams. High-acid foods, such as tomatoes, are canned in a water bath, and low-acid goods, such as meat or beans, are canned under pressure.

Food in cans can survive anywhere from one to five years if properly prepared. Home canning grew by 30% during the COVID-19 epidemic, demonstrating its usefulness and appeal.

6. Portion Planning and Labeling

Did you know that overlooked or improperly stored leftovers are responsible for up to 25 percent of home food wastage? Avoid this by marking containers with the preparation date, storing small amounts in the freezer, and planning meals—basic and efficient food preservation techniques.

A marker and some awareness are all one needs for this method.

7. Smart Storage & Rotation

The First In, First Out (FIFO) approach is the practice of keeping older items in front of newer ones. For a longer shelf life, use beeswax wraps, glass jars, or breathable produce bags. Certain items, such as potatoes, onions, and garlic, should not be kept in the refrigerator but rather in a cool, dark setting.

The lifespan of any type of food may be significantly extended by knowing where and how to store it.

Final Thoughts

While individual food waste might not be significant, when millions are wasted in homes worldwide, it amounts to one huge disaster. The seven food preservation techniques are easy to do, cheap, and often healthier. Everything counts, be it dehydrating apple slices, fermenting sauerkraut, or making frozen leftovers.

In addition to saving money, cutting down on food waste promotes sustainable agriculture, fights climate change, and builds a more food-secure future.

Also Read: The Role Of Consumer Behavior In Reducing Food Waste