Agriculture & Food Systems · Published 2025-09-12

Best By, Use By, Confuse By: Why Food Expiration Dates Are Wasting Our Dinner (and Our Future)

Let’s be honest—few things spark more heated household debates than food expiration dates. One person insists, “It expired yesterday, it’s poison!” Another calmly sniffs the milk and declares, “Still smells fine.” Before you know it,…

Let’s be honest—few things spark more heated household debates than food expiration dates. One person insists, “It expired yesterday, it’s poison!” Another calmly sniffs the milk and declares, “Still smells fine.” Before you know it, you’re in the kitchen holding a UN-style summit over a tub of yogurt.

Welcome to the strange world of food date labels—those little stamps that were supposed to help us but instead have us throwing away billions of shillings worth of food every year.

🍌 The Banana Problem: A Quick Primer on Date Labels

Here’s the not-so-secret secret: most dates on food packaging aren’t about safety at all—they’re about quality.

  • “Best if used by” = the food is tastiest before this date, but you won’t keel over afterward.

  • “Use by” = the safety cut-off (important for things like infant formula or highly perishable items).

  • “Sell by” = a note to the store, not to you—but somehow it became our eviction notice for perfectly edible bread.

Yet surveys show over 80% of consumers believe these labels mean the food will make them sick. As a result, mountains of food get binned even though it’s still edible. Globally, this adds up to 1.3 billion tons of food waste every year. That’s like cooking dinner for half the planet… and tossing it straight in the trash.

🍲 In Kenya, the Stakes Are Higher

In countries like Kenya, where many households face food insecurity, throwing away edible food feels like a crime against common sense.

Kenya has tried to simplify things by introducing dual labeling—one label for quality, another for safety. But in the open-air markets (our beloved marikiti), freshness is often judged by:

  • Whether there are flies (yes, ironically a sign of freshness).

  • How many customers are crowding a stall.

  • Or the classic test: “Does this sukuma wiki look like it can survive one more day of ugali?”

The challenge is that poor infrastructure, weak cold storage, and unclear enforcement mean food still gets lost in the cracks before it ever reaches the plate.

🥖 How to Stop Fighting About Bread at Home

Practical tips to keep the peace in your kitchen (and reduce waste):

  1. Trust your senses – smell it, look at it, feel it. Food tells you more than ink on plastic ever will.

  2. Adopt FEFO (First Expired, First Out) – organize your fridge so the older items stare at you accusingly every time you open the door.

  3. Freeze it before you lose it – bread, veggies, even milk can live happily in the freezer.

  4. Meal plan like a pro – buy what you’ll eat, not what the supermarket convinces you you might eat.

  5. Educate your squad – make the difference between best by and use by a family mantra.

🌍 Policy Moves That Can Save Millions

  • UK & EU: Simplified date labels and consumer education campaigns have slashed food waste by millions of tons.

  • California (USA): Just banned confusing “sell by” labels, mandating a simpler “best by” / “use by” system.

  • Kenya: With dual labeling in place, the next step is enforcement + public education + investment in food storage and donation systems.

Imagine if all surplus food from supermarkets and restaurants could legally and safely reach hungry households instead of landfills. That’s not just policy—it’s common sense with impact.

💡 Final Thought: Don’t Let Dates Dictate Your Plate

Food waste is one of the strangest tragedies of our time: families going hungry on one side, mountains of discarded food on the other.

So next time you see a date stamp on your packet of rice or loaf of bread, remember: it’s a guide, not a prophecy. Think of it like Nairobi traffic lights—they’re useful, but sometimes you need common sense to survive.


👉 Call to Action: If you work in food, policy, or just care about your fridge, push for clarity in food labeling. Talk about it. Share articles like this. And for heaven’s sake, stop fighting over the yogurt.

About the Author

Dr. Julius Kirimi Sindi is a global expert in research funding, policy impact, and donor relations. With extensive experience in analyzing philanthropy, business, and science funding, Dr. Sindi fosters sustainable and inclusive research ecosystems. He has facilitated international business relationships across Africa, Europe, and Asia. His upcoming book, "The Blueprint of Life Well Lived," explores successful strategies for navigating complex business environments while achieving sustainable growth.

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