Open your fridge right now and count the items with a date stamped on the packaging. Yoghurt, cheese, sliced ham, a half-used jar of pesto. Now consider this: with the single exception of infant formula, none of those dates are federally regulated for safety in the United States. In the European Union, the rules exist but are so poorly understood by consumers that the result is functionally the same — perfectly edible food thrown away by the tonne, every single day, because a printed date suggested it might be time.

Best Before Does Not Mean Bad After

The confusion starts with language. “Best before,” “use by,” “sell by,” “display until,” “best if used by” — these phrases appear interchangeably on packaging, and most consumers treat them as identical warnings. They are not. In the EU, “use by” is a safety deadline applied to highly perishable foods like raw meat and unpasteurised dairy. “Best before” is a quality indicator: the manufacturer’s estimate of when the product is at its peak, not when it becomes dangerous. A yoghurt three days past its best-before date is almost certainly safe to eat. Its texture may have shifted slightly. Its flavour might be marginally sharper. It has not, by any reasonable definition, become hazardous.

Yet consumer surveys consistently show that between 40 and 60 percent of people interpret “best before” as a safety boundary. A 2019 study by the European Commission found that up to 10 percent of the 88 million tonnes of food wasted annually in the EU is linked directly to date label misunderstanding. Not spoilage. Not contamination. Misreading a label.

Who Sets the Dates — and Why

In most jurisdictions, the manufacturer decides what date to print. There is no standardised scientific protocol. Companies determine shelf life through accelerated ageing tests, sensory panels, and conservative estimates designed to protect the brand’s reputation rather than accurately reflect the food’s viability. A shorter date means the product is consumed faster, repurchased sooner, and perceived as fresher on the shelf.

Consider the incentive structure. A food manufacturer gains nothing from printing a longer shelf life. If a customer opens a packet of biscuits six months after purchase and finds the texture slightly stale, the brand takes a reputational hit — even if the product is perfectly safe. Printing a shorter date ensures the product is consumed while still at peak quality, protects the brand experience, and accelerates the repurchase cycle. The date is a marketing tool dressed as a safety warning.

Retailers compound the problem. Supermarkets pull products from shelves days before the printed date to maintain an appearance of freshness. Tesco, the UK’s largest grocer, reportedly discards thousands of tonnes of food annually that is still within its labelled date window. The food is not spoiled. It simply isn’t fresh enough to maintain the visual standard the retailer wants customers to associate with the brand.

The Scale of What Gets Thrown Away

The United Nations Environment Programme estimates that roughly 1.3 billion tonnes of food is wasted globally each year — approximately one-third of all food produced. Households are the largest single source of this waste in high-income countries, and date labels are the most frequently cited reason consumers give for discarding food that shows no visible signs of spoilage.

In the UK alone, the Waste and Resources Action Programme has estimated that households throw away 6.6 million tonnes of food annually, of which approximately 4.5 million tonnes is still edible at the point of disposal. The financial cost to British households exceeds 14 billion pounds per year. Globally, food waste generates approximately 8 to 10 percent of all greenhouse gas emissions — more than the aviation industry.

Resistance to Reform

Simplifying date labels seems like an obvious solution. Reduce the system to two categories: “use by” for safety-critical items and “best before” for everything else, with clear public education about the difference. Several countries have moved in this direction. In 2023, the European Commission proposed standardising date labels across all member states. Progress has been slow.

Food industry lobbying groups have resisted mandatory changes, arguing that existing labels already provide sufficient information and that consumer education, not regulation, is the appropriate intervention. Translation: the current system drives repurchases, and changing it would reduce sales volume. A consumer who understands that their yoghurt is fine three days past the printed date is a consumer who buys fewer yoghurts per month.

The Smell Test That Always Worked

Before date labels existed, people assessed food the way every generation before them had: they looked at it, smelled it, and tasted a small amount. These sensory checks are remarkably reliable for most food categories. Sour milk smells sour. Mouldy bread is visibly mouldy. Spoiled meat changes colour and texture in ways that are unmistakable.

Date labels did not replace an unreliable system. They replaced a functional one with something that looks more precise but is often less accurate. The printed date tells you what the manufacturer estimated in a laboratory months ago. Your nose tells you what is actually happening in your fridge right now. One of these sources of information generates waste. The other reduces it. The food industry has a clear preference for which one you trust.