How to Trust Your Nose: A Common Sense Approach to Food Safety & Expiration Dates

Imperfect Foods
4 min readFeb 5, 2020
When in doubt, follow your nose!

Food waste is a baffling and frustrating problem because it’s usually an unintended outcome of well-intentioned people and organizations. No one wins by wasting food, but we all do it sometimes. When we look at food waste in our homes, the two main causes of waste are buying and cooking more food than we can finish, and a persistent uncertainty about what foods are still good to eat. While the first one is firmly in our control, the latter is tricky, because just as nobody wants to waste good food, nobody wants to feel ill from eating food that’s gone bad. Better to waste than to get sick, right?

One of the top reasons that good people end up unintentionally wasting good food is confusion over the dates printed onto the side of the package. Out of our earnest and understandable concern about food safety, we waste food as a defensive measure. But did you know that unless they appear on infant formula, expiration dates are estimates of food quality and not food safety? Plus, they’re an extremely flawed way to judge which foods are still good to eat, and confusion around what they mean (and don’t mean) causes hundreds of millions of pounds of unnecessary food waste every year. We need to find a better way to determine what’s good to eat since these expiration dates are failing us.

To solve this problem, we don’t necessarily need new dates or technology, we just need to find ways to become empowered eaters that use and trust our senses again! To help you bridge the gap and take control of waste in your kitchen, we’re sharing some helpful wisdom for making the call on what to eat and what to toss. Below are some common-sense ways to know if your favorite groceries are still good to eat.

Dairy & fridge staples

If stored properly, eggs will last for 3–5 weeks after you buy them. Don’t store eggs in the door of your fridge, since this area is too warm. To easily tell if your eggs are still fresh, try placing one in a bowl of cold water. If the egg sinks, it’s still fresh. If it floats, the batch is too old and should be composted.

Milk can last for about a week after the “sell by” date. If you’re unsure if it’s still good to drink, pour a small amount into a glass and smell it. If the milk has changed color, is clumpy, or smells off, dump it out. Don’t store milk in the door of your refrigerator, since it’s too warm there.

Cheeses are absolutely good past their expiration dates. With cheese, the best way to know if it’s still good is to use your eyes. If it has started to grow mold, you can usually just cut around the mold and eat the rest of the cheese.

Yogurt can last for 1–2 weeks past its printed expiration date in the fridge. Opened yogurt will last for a week or so.

Fruit juice lasts longer than vegetable juice. Juice that’s gone bad will smell sour.

Proteins

The“use by” or freeze by” dates on animal proteins should be taken more seriously than other types of food. Raw meat lasts for a few days if stored in the fridge. Freeze it if you can’t use it within a couple of days.

Deli meat is a more risky food due to the potential for listeria, so you should pay attention to the printed expiration dates on sandwich meats. If it smells odd or looks slimy, throw it away.

Pantry staples

Canned goods like beans are good for years after the “best by” dates. Acidic items like tomatoes only last for about a year and a half. To ensure that cans stay fresh longer, store them in a cool, dry place.

Sliced bread lasts for 5–7 days past the expiration date in the pantry but will dry out over time. Stale bread can be repurposed into homemade croutons or breadcrumbs. Whole loaves of bread last longer than pre-sliced bread. It’s best to freeze bread if you cannot finish it.

Honey is good indefinitely. It will naturally crystallize over time. If this texture is an issue for you, just gently heat the jar of honey in a bowl of warm water and it will return to a liquid.

Dried pasta is good for 1–2 years after its expiration date. It will last longer if you store it in a container that seals tightly and keeps air out.

A Note on Botulism: While rare, botulism is always a risk with canned foods, especially ones with low acidity like green beans, asparagus, or corn. Botulism in food happens most frequently in home-canned food since the spores thrive in low-oxygen environments, so it pays to take precautionary steps. Things like properly pressure canning your food and refrigerating garlic and oil mixtures promptly will help minimize your risk. If your store bought cans are deeply dented, rusted, or bulging, these are all warning signs that the can may be compromised and the contents should be thrown out.

When in doubt, remember that your nose knows! Your body has millions of years of evolution on its side when it comes to knowing if something is safe to eat or not. If something looks, smells, or tastes off, trust your gut and throw it away. If it looks, smells, and tastes normal, enjoy it and don’t let it go to waste! By using your senses and some common sense, you can help reduce food waste and build a better food system for everyone.

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Imperfect Foods

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