10 Simple Ways to Reduce Food Waste

Learn how to make the most of your grocery haul.
Learn how to make the most of your grocery haul.
GANNAMARTYSHEVA/iStock via Getty Images

With the novel coronavirus majorly disrupting the food service industry, billions of dollars’ worth of food is going to waste as farmers face an overwhelming surplus of perishable items like dairy and fresh vegetables, according to a recent article in The Guardian. Thanks to a scrambled supply chain, nearly half of the food grown in the United States that was previously destined for school cafeterias, restaurants, theme parks, cruise ships, and stadiums is going to waste, with farmers being forced to dump fresh milk and plow vegetables back into the dirt. To better preserve your own supplies—and save some serious cash—check out these 10 ways to reduce food waste at home.

1. Store your food properly.

Correctly storing your food will help it stay fresh longer. If your bread typically molds or goes stale before you have the chance to finish the loaf, keep half of it in the bread box and freeze the other half for later. Store potatoes and tomatoes at room temperature. Don’t stash your eggs in the refrigerator door compartment—this will rattle them around, and may lead to a yolky mess. You can find more helpful food storing tips here.

2. Get well-acquainted with your freezer.

Stuffing your freezer means you can also pass time with a quality game of freezer Tetris.mliu92, Flickr // CC BY-SA 2.0

Leftovers, especially meals like soups or stews, are excellent for freezing. But you can freeze individual ingredients, too. Freeze wilted spinach to add to future soups. Frozen berries work well in smoothies, and frozen overripe bananas are perfect for banana bread. Keeping a bag of vegetable scraps in the freezer is a great way to ensure you’ll always have the ingredients for vegetable stock on hand (more on that later). However, there are some foods you should never freeze, and there are certain things you shouldn’t do when defrosting.

3. Learn the best way to freeze different kinds of fruit.

Ripe, fairly unblemished fruit is best for freezing. First, wash the fruit and sort through it for any pieces that are bruised or rotten. Some fruits, like blackberries, raspberries, and plums [PDF], will freeze better with the help of a sugar solution, though cranberries, blueberries, and currants typically do fine on their own. Arrange more delicate berries like strawberries or raspberries in a single layer on a baking sheet (you can also coat them with sugar or a sugar syrup), and then once they’re frozen, put them in a container or a plastic freezer bag. Fruits that tend to brown, like peaches, apple, apricots, and nectarines, can be treated with ascorbic acid (Vitamin C), which you can purchase in powder form in health food stores and some grocery stores.

4. Follow the “first in, first out” rule.

Much like shelves are stocked in grocery stores, use the “first in, first out” method when stocking your refrigerator. After washing your produce and wiping down all other items, put the newer ingredients in the back of the fridge and move the older items to the front so they’ll get used first. A fridge cam can even help you keep track of what’s about to go bad or expire.

5. Keep your fridge uncluttered.

Maintaining an orderly fridge will help you spot spoiling food before it starts to stink.millann/iStock via Getty Images

Having to rummage around for an item or not being able to see that bottle of cocktail sauce tucked behind the box o’ wine means more food may go bad before it’s used up. Periodically, take a look at the long-term residents of your fridge, like salad dressings and sauces, to see if they’re still good. If possible, keep them all in one spot to make keeping track of them easier. Also, use square containers for leftovers rather than round ones, as the square shape allows for more storage space. Taking stock of everything you have in both the fridge and the pantry before shopping will also help cut down on clutter and double-buying.

6. Understand expiration dates.

Studies have shown that we throw away more than half of the food we keep in our refrigerators. Misunderstanding food labels is one reason behind the waste. “Sell by” is the date used to inform retailers when an item should be sold or removed from inventory. “Best by” is a suggested date that shoppers should use their products by. Neither means the item is unsafe to eat after that particular date. Even “expires by” isn’t set in stone.

7. Use food scraps to make stock.

Using vegetable scraps like stalks, tops, and peels to make a tasty broth is simple. Sauté them in some butter or oil, then add water and let them simmer for a few hours. Simmer beef bones and chicken carcasses along with the veggies (add water and herbs) to make a delectable homemade broth.

8. Plan your meals in advance.

Knowing what you want to eat for just a few dinners or lunches per week can help you figure out which ingredients you can use across meals and help cut down on spontaneous buying. The Kitchn recommends planning on a Friday, shopping on a Saturday, and then using an hour on Sunday for meal prep.

9. Shop strategically.

For now, it's best to write your shopping list on paper you can later dispose of.Santeri Viinamäki, Wikimedia Commons // CC BY-SA 4.0

Typically, more frequent trips to the grocery store are preferable to buying in bulk when it comes to cutting down on waste, but in these current circumstances, less frequent trips are your safest bet. Therefore, a list is essential—just make sure you're jotting your notes on paper and not touching your phone while shopping. And if there’s any way to order online for delivery or pick-up, keeping an open online shopping cart is the best way to organize and maintain a visual list.

10. Donate items you know you won’t use to your local food bank.

If you have more food on hand than you need, consider donating to a local shelter or food bank. Call ahead and arrange curbside drop off.

10 of the Best Indoor and Outdoor Heaters on Amazon

Mr. Heater/Amazon
Mr. Heater/Amazon

With the colder months just around the corner, you might want to start thinking about investing in an indoor or outdoor heater. Indoor heaters not only provide a boost of heat for drafty spaces, but they can also be a money-saver, allowing you to actively control the heat based on the rooms you’re using. Outdoor heaters, meanwhile, can help you take advantage of cold-weather activities like camping or tailgating without having to call it quits because your extremities have gone numb. Check out this list of some of Amazon’s highest-rated indoor and outdoor heaters so you can spend less time shivering this winter and more time enjoying what the season has to offer.

Indoor Heaters

1. Lasko Ceramic Portable Heater; $20

Lasko/Amazon

This 1500-watt heater from Lasko may only be nine inches tall, but it can heat up to 300 square feet of space. With 11 temperature settings and three quiet settings—for high heat, low heat, and fan only—it’s a dynamic powerhouse that’ll keep you toasty all season long.

Buy it: Amazon

2. Alrocket Oscillating Space Heater; $25

Alrocket/Amazon

Alrocket’s oscillating space heater is an excellent addition to any desk or nightstand. Using energy-saving ceramic technology, this heater is made of fire-resistant material, and its special “tip-over” safety feature forces it to turn off if it falls over (making it a reliable choice for homes with kids or pets). It’s extremely quiet, too—at only 45 dB, it’s just a touch louder than a whisper. According to one reviewer, this an ideal option for a “very quiet but powerful” heater.

Buy it: Amazon

3. De’Longhi Oil-Filled Radiator Space Heather; $79

De’Longhi/Amazon

If you prefer a space heater with a more old-fashioned vibe, this radiator heater from De’Longhi gives you 2020 technology with a vintage feel. De’Longhi’s heater automatically turns itself on when the temperatures drops below 44°F, and it will also automatically turn itself off if it starts to overheat. Another smart safety feature? The oil system is permanently sealed, so you won’t have to worry about accidental spills.

Buy it: Amazon

4. Aikoper Ceramic Tower Heater; $70

Aikoper/Amazon

Whether your room needs a little extra warmth or its own heat source, Aikoper’s incredibly precise space heater has got you covered. With a range of 40-95°F, it adjusts by one-degree intervals, giving you the specific level of heat you want. It also has an option for running on an eight-hour timer, ensuring that it will only run when you need it.

Buy it: Amazon

5. Isiler Space Heater; $37

Isiler/Amazon

For a space heater that adds a fun pop of color to any room, check out this yellow unit from Isiler. Made from fire-resistant ceramic, Isiler’s heater can start warming up a space within seconds. It’s positioned on a triangular stand that creates an optimal angle for hot air to start circulating, rendering it so effective that, as one reviewer put it, “This heater needs to say ‘mighty’ in its description.”

Buy it: Amazon

Outdoor Heaters

6. Mr. Heater Portable Buddy; $104

Mr. Heater/Amazon

Make outdoor activities like camping and grilling last longer with Mr. Heater’s indoor/outdoor portable heater. This heater can connect to a propane tank or to a disposable cylinder, allowing you to keep it in one place or take it on the go. With such a versatile range of uses, this heater will—true to its name—become your best buddy when the temperature starts to drop.

Buy it: Amazon

7. Hiland Pyramid Patio Propane Heater; Various

Hiland/Amazon

The cold’s got nothing on this powerful outdoor heater. Hiland’s patio heater has a whopping 40,000 BTU output, which runs for eight to 10 hours on high heat. Simply open the heater’s bottom door to insert a propane tank, power it on, and sit back to let it warm up your backyard. The bright, contained flame from the propane doubles as an outdoor light.

Buy it: Amazon

8. Solo Stove Bonfire Pit; $345

Solo Stove/Amazon

This one is a slight cheat since it’s a bonfire pit and not a traditional outdoor heater, but the Solo Stove has a 4.7-star rating on Amazon for a reason. Everything about this portable fire pit is meticulously crafted to maximize airflow while it's lit, from its double-wall construction to its bottom air vents. These features all work together to help the logs burn more completely while emitting far less smoke than other pits. It’s the best choice for anyone who wants both warmth and ambiance on their patio.

Buy it: Amazon

9. Dr. Infrared Garage Shop Heater; $119

Dr. Infrared/Amazon

You’ll be able to use your garage or basement workshop all season long with this durable heater from Dr. Infrared. It’s unique in that it includes a built-in fan to keep warm air flowing—something that’s especially handy if you need to work without wearing gloves. The fan is overlaid with heat and finger-protectant grills, keeping you safe while it’s powered on.

Buy it: Amazon

10. Mr. Heater 540 Degree Tank Top; $86

Mr. Heater/Amazon

Mr. Heater’s clever propane tank top automatically connects to its fuel source, saving you from having to bring any extra attachments with you on the road. With three heat settings that can get up to 45,000 BTU, the top can rotate 360 degrees to give you the perfect angle of heat you need to stay cozy. According to a reviewer, for a no-fuss outdoor heater, “This baby is super easy to light, comes fully assembled … and man, does it put out the heat.”

Buy it: Amazon

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A Brief History of Mashed Potatoes

mphillips007/iStock via Getty Images Plus
mphillips007/iStock via Getty Images Plus

During the Seven Years War of the mid-1700s, a French army pharmacist named Antoine-Augustin Parmentier was captured by Prussian soldiers. As a prisoner of war, he was forced to live on rations of potatoes. In mid-18th century France, this would practically qualify as cruel and unusual punishment: potatoes were thought of as feed for livestock, and they were believed to cause leprosy in humans. The fear was so widespread that the French passed a law against them in 1748.

But as Parmentier discovered in prison, potatoes weren’t deadly. In fact, they were pretty tasty. Following his release at the end of the war, the pharmacist began to proselytize to his countrymen about the wonders of the tuber. One way he did this was by demonstrating all the delicious ways it could be served, including mashed. By 1772, France had lifted its potato ban. Centuries later, you can order mashed potatoes in dozens of countries, in restaurants ranging from fast food to fine dining.

The story of mashed potatoes takes 10,000 years and traverses the mountains of Peru and the Irish countryside; it features cameos from Thomas Jefferson and a food scientist who helped invent a ubiquitous snack food. Before we get to them, though, let’s go back to the beginning.

The Origins of the Potato

Potatoes aren’t native to Ireland—or anywhere in Europe, for that matter. They were most likely domesticated in the Andes mountains of Peru and northwest Bolivia, where they were being used for food at least as far back as 8000 BCE.

These early potatoes were very different from the potatoes we know today. They came in a variety of shapes and sizes and had a bitter taste that no amount of cooking could get rid of. They were also slightly poisonous. To combat this toxicity, wild relatives of the llama would lick clay before eating them. The toxins in the potatoes would stick to the clay particles, allowing the animals to consume them safely. People in the Andes noticed this and started dunking their potatoes in a mixture of clay and water—not the most appetizing gravy, perhaps, but an ingenious solution to their potato problem. Even today, when selective breeding has made most potato varieties safe to eat, some poisonous varieties can still be bought in Andean markets, where they're sold alongside digestion-aiding clay dust.

By the time Spanish explorers brought the first potatoes to Europe from South America in the 16th century, they had been bred into a fully edible plant. It took them a while to catch on overseas, though. By some accounts, European farmers were suspicious of plants that weren’t mentioned in the Bible; others say it was the fact that potatoes grow from tubers, rather than seeds.

Modern potato historians debate these points, though. Cabbage’s omission from the Bible didn’t seem to hurt its popularity, and tulip cultivation, using bulbs instead of seeds, was happening at the same time. It may have just been a horticultural problem. The South American climates potatoes thrived in were unlike those found in Europe, especially in terms of hours of daylight in a day. In Europe, potatoes grew leaves and flowers, which botanists readily studied, but the tubers they produced remained small even after months of growing. This particular problem began to be remedied when the Spanish started growing potatoes on the Canary Islands, which functioned as a sort of middle ground between equatorial South America and more northerly European climes.

It’s worth pointing out, though, that there is some evidence for the cultural concerns mentioned earlier. There are clear references to people in the Scottish Highlands disliking that potatoes weren’t mentioned in the Bible, and customs like planting potatoes on Good Friday and sometimes sprinkling them with holy water suggest some kind of fraught relationship to potato consumption. They were becoming increasingly common, but not without controversy. As time went on, concerns about potatoes causing leprosy severely damaged their reputation.

Early Mashed Potato Recipes

A handful of potato advocates, including Parmentier, were able to turn the potato's image around. In her 18th-century recipe book The Art of Cookery, English author Hannah Glasse instructed readers to boil potatoes, peel them, put them into a saucepan, and mash them well with milk, butter, and a little salt. In the United States, Mary Randolph published a recipe for mashed potatoes in her book, The Virginia Housewife, that called for half an ounce of butter and a tablespoon of milk for a pound of potatoes.

But no country embraced the potato like Ireland. The hardy, nutrient-dense food seemed tailor-made for the island’s harsh winters. And wars between England and Ireland likely accelerated its adaptation there; since the important part grows underground, it had a better chance of surviving military activity. Irish people also liked their potatoes mashed, often with cabbage or kale in a dish known as colcannon. Potatoes were more than just a staple food there; they became part of the Irish identity.

But the miracle crop came with a major flaw: It’s susceptible to disease, particularly potato late blight, or Phytophtora infestans. When the microorganism invaded Ireland in the 1840s, farmers lost their livelihoods and many families lost their primary food source. The Irish Potato Famine killed a million people, or an eighth of the country’s population. The British government, for its part, offered little support to its Irish subjects.

One unexpected legacy of the Potato Famine was an explosion in agricultural science. Charles Darwin became intrigued by the problem of potato blight on a humanitarian and scientific level; he even personally funded a potato breeding program in Ireland. His was just one of many endeavors. Using potatoes that had survived the blight and new South American stock, European agriculturists were eventually able to breed healthy, resilient potato strains and rebuild the crop’s numbers. This development spurred more research into plant genetics, and was part of a broader scientific movement that included Gregor Mendel’s groundbreaking work with garden peas.

Tools of the Mashed Potato Trade

Around the beginning of the 20th century, a tool called a ricer started appearing in home kitchens. It’s a metal contraption that resembles an oversized garlic press, and it has nothing to do with making rice. When cooked potatoes get squeezed through the tiny holes in the bottom of the press, they’re transformed into fine, rice-sized pieces.

The process is a lot less cumbersome than using an old-fashioned masher, and it yields more appetizing results. Mashing your potatoes into oblivion releases gelatinized starches from the plant cells that glom together to form a paste-like consistency. If you’ve ever tasted “gluey” mashed potatoes, over-mashing was likely the culprit. With a ricer, you don’t need to abuse your potatoes to get a smooth, lump-free texture. Some purists argue that mashed potatoes made this way aren’t really mashed at all—they’re riced—but let's not let pedantry get in the way of delicious carbohydrates.

The Evolution of Instant Mashed Potatoes

If mashed potato pedants have opinions about ricers, they’ll definitely have something to say about this next development. In the 1950s, researchers at what is today called the Eastern Regional Research Center, a United States Department of Agriculture facility outside of Philadelphia, developed a new method for dehydrating potatoes that led to potato flakes that could be quickly rehydrated at home. Soon after, modern instant mashed potatoes were born.

It’s worth pointing out that this was far from the first time potatoes had been dehydrated. Dating back to at least the time of the Incas, chuño is essentially a freeze-dried potato created through a combination of manual labor and environmental conditions. The Incas gave it to soldiers and used it to guard against crop shortages.

Experiments with industrial drying were gearing up in the late 1700s, with one 1802 letter to Thomas Jefferson discussing a new invention where you grated the potato and pressed all the juices out, and the resulting cake could be kept for years. When rehydrated it was “like mashed potatoes” according to the letter. Sadly, the potatoes had a tendency to turn into purple, astringent-tasting cakes.

Interest in instant mashed potatoes resumed during the Second World War period, but those versions were a soggy mush or took forever. It wasn’t until the ERRC’s innovations in the 1950s that a palatable dried mashed potato could be produced. One of the key developments was finding a way to dry the cooked potatoes much faster, minimizing the amount of cell rupture and therefore the pastiness of the end-product. These potato flakes fit perfectly into the rise of so-called convenience foods at the time, and helped potato consumption rebound in the 1960s after a decline in prior years.

Instant mashed potatoes are a marvel of food science, but they’re not the only use scientists found for these new potato flakes. Miles Willard, one of the ERRC researchers, went on to work in the private sector, where his work helped contribute to new types of snacks using reconstituted potato flakes—including Pringles.