What do "best before" dates on food really mean?

The question:

What do “best before” dates on food packages mean? Is it safe to eat foods after these dates expire? Are they still nutritious?

The answer:

“Best before” dates refer to the quality and shelf life of an unopened food product, not safety. They tell you how long a product will retain its optimum flavour, texture and nutritional value when stored under normal conditions. In Canada, best before dates are required on foods that will keep fresh for 90 days or less. However, many foods show best before dates even though they aren’t required to do so.

Once you open a food, the best before date is no longer valid. For opened packages, manufacturers are required to provide storage instructions on the label when they differ from normal room temperature – for example, “refrigerate after opening” or “keep refrigerated.”

If you store foods properly, many fresh foods like eggs, milk and yogurt can be safely eaten soon after their best before dates have expired. Many packaged foods such as crackers, cookies, canned soup and tinned tuna can be eaten safely well long after the best before date. That doesn’t mean these foods will taste as fresh, however. They may have lost some of their flavour and their texture may have changed. Think of best before dates as suggestions about how long food will retain its freshness.

Although canned and packaged foods have a much longer shelf life than fresh foods, keep in mind they can lose anywhere from 5 to 20 per cent of their nutritional content every year. Be sure to store canned foods in a cool, dry, dark cupboard.

“Packaged on” dates are different than best before dates. Mandatory for meat and poultry, these dates tell you the day the fresh food was packaged in the store. The “packaged on date” is usually the starting point for how long you can expect the food to stay safe to eat.

These are supermarkets that specialize in items that other chains no longer want to sell –such as discontinued, overbuys, or items near or even past the expiration date. While these stores aren’t for everyone, they do attract price-conscious shoppers looking for deals. And the deals can be significant. One example: a box of cereal that sells at most regular grocery stores for nearly $5.00 can cost as low as $1.00
— Emily Broad Leib, director of the Harvard Food Law and Policy Clinic

Food Waste: The Issue of Food Waste

Food Waste by the Numbers

Percentage of Food Waste Throughout the Chain (field to home) in Canada

(Gooch et al, 2014)

An Average Household’s Food Waste in a medium sized Ontario Municipality

(Massow and Martin, n.d.)

Hierarchy of Food Recovery

Food waste reduction and diversion initiatives take a variety of approaches that can be prioritized through food recovery pyramids. These initiatives focus on both edible and inedible food waste.

Prevention: Avoid the Generation of Food Waste

Re-use: Feed People in Need

Recycle: Feed Livestock Food unfit for Human Consumption and/or Compost Food Waste

Recovery: Produce Renewable Energy with Unavoidable Food Waste

Disposal (Landfill/Incineration)

Food Waste and Toronto

Toronto’s Long Term Waste Management Strategy

As the City of Toronto develops its Long Term Waste Management Strategy the TFPC has been working towards strategically including food waste as a priority in the Strategy.

Potential benefits for the City of Toronto include:

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