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There are right and wrong ways to store your food. For example, some food must be refrigerated while other types need to be kept at room temperature. Some cooking oils are fine on the countertop, and others should be stored in the fridge. Even some of your expired foods aren’t really expired, and you might be using the wrong containers. With food storage at a premium, you don't want to let anything go to waste.

We’ve done the legwork to figure out the right ways to store your food so that it tastes best and lasts the longest. Here are the answers to ten common kitchen storage mistakes.

1. You're throwing out your ‘expired’ food

The Argus: Certain expiration dates have less to do with safety than they do quality. Credit: Getty / FangXiaNuoCertain expiration dates have less to do with safety than they do quality. Credit: Getty / FangXiaNuo

It’s important to know the difference between food that has passed the ‘Best Before’ date and food that has passed the ‘Use by’ date. You should never eat food that has passed its ‘Use by’ date, but ‘Best Before’ dates often reflect quality control, not safety or nutritional value. In determining if the food that has passed the ‘Best Before’ is safe to eat read up on Food Standards Agency guidelines, use your eyes and nose, and follow your gut.

  • Smell: If it smells fine and it was stored properly, it's likely okay to eat.
  • Sight: Don’t let your eyes fool you when it comes to fresh food like produce. Bumps or bruises don’t mean something is ruined.
  • Don't can the cans: Canned goods can last for decades. Even a can that's started to rust should still be okay, as long as it isn't bulging and the seal is intact.

Check the packaging, use your senses, cook food thoroughly, and don’t let the perfect become the enemy of the good. A proper understanding of expiration dates could drastically cut down on food waste—not to mention wasted money out of your pocket.

2. You're using plastic wrap to save your leftovers

The Argus: Bee's Wrap can be used to store anything from biscuits to sandwiches. But not soup... yet. Credit: Bee's WrapBee's Wrap can be used to store anything from biscuits to sandwiches. But not soup... yet. Credit: Bee's Wrap

If you’re sick of throwing away disposable food wrap but still want to keep food fresh, Bee’s Wrap might be your answer. This reusable food wrap is made from beeswax and fabric.

It’s designed so you can build a sandwich on top of it in your kitchen, then unwrap it to use as a placemat. Bee’s Wrap is also ideal for food storage. An avid home baker, creator Sarah Kaeck said it’ll help keep bread crusty and soft. It’s also great for wrapping cheese, half of an avocado, half of a lemon, covering jars and bowls (press some Bee’s Wrap onto the top of a container and the warmth of your hand will soften the wax just enough to create a seal).

Afterwards, just wash it with cold water (soap is okay, but warm water melts the wax), hang-dry, and use it again. It should last about a year if you use it a few times a week.

3. You're refrigerating these foods—and you shouldn't be

The Argus: Not everything goes in your fridge. Credit: Getty / SolStockNot everything goes in your fridge. Credit: Getty / SolStock

Some foods are actively made worse by refrigeration—onions, potatoes, garlic, avocado, tomatoes, bananas, stone fruit, bread, pastries, melons, spices, honey, peanut butter, apples, coffee, eggs, butter, condiments, dressings, soy sauce and hot sauce should never (or rarely) be refrigerated. Surprised?

4. You don't know how to store your cooking oils

The Argus: Some cooking oils are best stored in the cabinet, while others can be refrigerated. Credit: Getty / Angelina ZinovievaSome cooking oils are best stored in the cabinet, while others can be refrigerated. Credit: Getty / Angelina Zinovieva

Cooking oils sourced from fruits, vegetables, nuts, and seeds each have different storage needs. Exposure to oxygen, light or heat will subject oil to oxidation, eventually turning it rancid. While some cooking oils can be stored at room temperature, others do best when stored in the fridge.

  • Corn and rapeseed oils: These do just fine stored in a cool, dark cabinet, or you can refrigerate them if it takes more than a year to get through a bottle.
  • Olive oil: Leaving olive oil out on the counter or a table, especially if the bottle gets direct sunlight, or storing it on or near a stove are surefire ways to turn it rancid quickly. Place it in the coolest, darkest place in your home or use a smaller glass bottle in the kitchen.
  • Peanut oil: Can be kept for as long as two years if stored tightly capped and away from heat and light. Keeping peanut oil in the fridge may extend shelf life even further.
  • Coconut oil: Very stable and (when kept at room temperature) has a shelf life of two years or more.
  • Avocado, grapeseed, hazelnut, sesame, truffle, walnut, safflower and sunflower: Delicate oils that are especially prone to rancidity, especially if exposed to too much light or heat. Refrigerating after opening is recommended. Kept cold, these oils will remain viable for six months or more.

5. You're using the wrong containers to store your food

We tested the best-selling plastic and glass food storage containers on the market to find the best of the lot. We dropped them onto a linoleum floor, froze them, microwaved them, stained them, pried them apart, stacked them back together, and lots more.

  • Best glass container: Pyrex's Cook and Eat Glass Storage Set is a great choice. Food won't leak, and the glass won't shatter. While the BPA-free lids may stain, they will come clean after a run in the dishwasher. There’s a vent for microwave reheats and, as long as the contents are defrosted, it’s also preheated oven safe.
  • Best plastic container: Rubbermaid’s Easy Find Lids containers won’t spring a leak unless you shake them violently, and drops aren’t a problem unless the container happens to fall on its side or a corner. No plastic container is oven-safe, but the set is marked dishwasher- and microwave-safe and carries a lifetime warranty. You should avoid freezing this set, as expanding food may pop the lid.

6. You're incorrectly storing fruits and veggies

Do you know which vegetables should stay at room temperature, which should be kept inside a salad drawer, and which should never be stored together? Are you sure?

  • Do not refrigerate: Potatoes, onions, garlic, winter squash, tomatoes, bananas, peaches, plums, avocados, mangoes, melons, apples, pears, kiwis, and citrus. Exceptions include freezing for smoothies, or refrigerating for brief periods when they're close to spoiling.
  • Keep separate: Produce that emits high levels of ethylene gas, including ripe bananas, apples, stone fruit (except for cherries), cantaloupe, honeydew melons, mangoes, pears, ripe kiwis, tomatoes, onions, and leeks.
  • Store alone: Ethylene-sensitive produce, including aubergine, broccoli, Brussels sprouts, cabbage, carrots, cauliflower, cucumber, leafy greens, peas, peppers, squash, sweet potatoes, strawberries, and watermelon.

7. You're letting your avocados turn brown

There are many ways to store a cut avocado, but only one that will actually keep it from browning and preserve the flavour: Leave the pit in an avocado, and tightly wrap the half in plastic wrap to keep the flavour and texture intact.

8. You're letting the food in your fridge accidentally freeze

The Argus: Foods in your fridge shouldn't be freezing. Credit: Getty / IssaurinkoFoods in your fridge shouldn't be freezing. Credit: Getty / Issaurinko

Biting into frozen food that’s merely supposed to be refrigerated isn’t just annoying: Freezing can completely alter the taste and texture of your food. And it’s probably because you’re probably arranging your fridge the wrong way.

  • Check your fridge's temperature settings: The ideal temperature range for the interior of your fridge is 8°C and below.
  • Determine problem areas: According to appliance manufacturer GE, the most common problem areas are the top shelf, the bottom of the fridge (salad drawers), and door shelves.
  • Avoid vents: Most fridges have a cooling vent above the top shelf. This is where most of the cold air comes from, so keeping food away from here may prevent freezing. (A 5-inch radius should do the trick.)
  • Adjust your freezer: Turn up your freezer temperature settings, but nothing north of 0°F, which will facilitate bacterial growth and accelerate food spoilage.
  • Check your ice maker: Make sure that your ice maker is not constantly running. This could make your freezer too cold and subsequently cause your refrigerated foods to freeze.
  • Stock up your fridge: Refrigerators need to be well-stocked to absorb all of the cold air being vented into the cavity. If it is relatively empty, all of the cold air will sink to the bottom of the cavity and freeze your food. A fully stocked fridge will help maintain temperatures and, as a result, use less energy.

9. You're not fixing a door that won't shut properly

If your fridge door won't close, it's probably due to an old, dried-out gasket, the rubber seal that runs along its edge. Luckily, the fix is simple: wash the gasket, and apply petroleum jelly to the rubber to revitalize the old rubber.

10. You're not regulating your fridge's temperature

The Argus: A full fridge will help keep the temperature consistent. Credit: Getty / Group4 StudioA full fridge will help keep the temperature consistent. Credit: Getty / Group4 Studio

Did you know your fridge could actually be making you sick? To keep food out of what the Food Saftey Agency calls ‘the danger zone’, it needs to remain below 8°C. The freezer should be set to -18°C to keep freezer burn at bay. If your fridge and freezer are regularly warmer than those temperatures, you’re risking faster spoilage. Here are a few things you can do to keep your fridge properly chilled:

  • Invest in a fridge thermometer. To use, place the thermometer in a cup of water. Why? Your refrigerator measures the temperature of the air around your food, but you want to simulate the temperature inside your foods. Check the thermometer after 24 hours and then, adjust the temperature of each appliance based on the results.
  • Check to make sure the gasket is in good shape, and seals well. If you can open the door with one finger, your seal isn't tight enough. A leaky seal is an energy waster, and may be a risk to your food.
  • Dust your refrigerator's cooling coils, if they're visible. You can use a long, skinny brush made for this purpose.
  • Cover your food. For example, leave eggs in their carton, not in the door.
  • Keep a full fridge to retain the cold, but leave enough room for air to circulate.

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