Food Expiration Dates

Walk into a grocery store, and you’ll face a cacophony of expirations dates: “sell by,” “use by,” “freeze by.” Sometimes you’ll even see “enjoy by” or “delicious if used by.”


The confusion over food expiration dates is more than just an inconvenience for shoppers. All that bad labeling means a lot of good food goes to waste, as consumers misinterpret dates and throw away refrigerators full of edible food.


Except for infant formula, the United States lacks the sort of national standards for food expiration dates that many other countries have. The absence of federal legislation has led to a hodgepodge of conflicting state laws, with food producers in many cases slapping whatever dates and phrasing they want onto their products, experts say.

“There’s a lot of confusion among both consumers and, frankly, people who work in the food industry,” said Dana Gunders, executive director of the anti-food waste nonprofit ReFED.


As a result, an estimated 80 million tons of perfectly usable food go uneaten, according to the group, with broad environmental consequences. Global food loss and waste equals 8 to 10 percent of all greenhouse gas pollution, according to the U.N. Intergovernmental Panel on Climate Change.


“There are so many things we need to do to decarbonize,” said Emily Broad Leib, a Harvard Law School professor and founding director of the Harvard Law School Food Law and Policy Clinic. “But this should be one of the easy ones.”


Some members of Congress are trying to change that dizzying nomenclature. Last week, a group of lawmakers — Reps. Chellie Pingree (D-Maine) and Dan Newhouse (R-Wash.) and Sen. Richard Blumenthal (D-Conn.) — reintroduced a bill called the Food Date Labeling Act meant to reduce food waste by standardizing date labels on food products.

Until Congress acts, here’s how to understand all dates and cut down on food waste:


Know what food labels really mean


In the United States, most dates consumers see on food items are for freshness, not safety, according to the U.S. Department of Agriculture. A product past its “best if used by” date may not taste as good as something fresh off the shelf. But it is often perfectly healthy to eat.


“Stale cereal is still safe to eat,” said Andrea Collins, senior specialist at the Natural Resources Defense Council. “So people are prematurely tossing food that could be really nourishing us instead.”


Some food makers measure the rate at which bacteria grows on food, or conduct taste tests to see when food begins to taste stale. But others just make an educated guess at how long a product will remain fresh-tasting.


“Most of them are manufacturers’ best guess at quality,” Collins said.


Follow your nose


If you can’t trust dates printed on packaging, what can you trust? Your own senses are often good enough, experts say. Thousands of years of evolution have given humans the ability to sniff out spoiled milk or spot green, moldy bread.


“Think back to your grandmother,” Gunders said. “There weren’t dates on food then, but they managed to figure things out.”……..

https://www.washingtonpost.com/climate-solutions/2023/05/17/food-expiration-dates-best-by/