Sell By:: A History of American Food Safety — Freshness Not Guaranteed

The date on your food isn’t a scientific fact. It’s a business decision.

Every year, Americans throw away hundreds of millions of pounds of perfectly safe food because a date on a package told them to. That date wasn’t reviewed by the FDA. It wasn’t required by federal law. It was set by a manufacturer, using internal methodology no regulator approved, printed in whatever font the marketing team liked, and governed — loosely — by a patchwork of 27 conflicting state laws that have never fully been reconciled.

Sell By is the story of how we got here.

With the forensic wit and darkly entertaining style that earned him a following across eight books, A.M. Neel traces the full arc of American food safety — from Napoleon’s desperate search for a way to feed his armies without killing them, to Nicolas Appert’s mysterious discovery that heat and sealed containers could preserve food without anyone understanding why, to the botulism scandals that launched the first regulatory era, to the chemists, refrigerator salesmen, GMO pioneers, and congressional staffers who have spent a century and a half trying to solve the same basic problem: how do you keep food safe, and who decides when it isn’t?

The answer, Neel discovers, is almost never who you think.

Along the way, Sell By uncovers the Al Capone connection to milk expiration dating, the little-known federal agency turf war that explains why your yogurt and your deli meat answer to different rules, the sensory science behind how “best by” dates are actually calculated (and why they’re set earlier than the science requires), and the Food Date Labeling Act — a straightforward fix to the entire system — that has been introduced in Congress four times since 2016 and never once received a floor vote.

Sell By is not a food safety scare book. It’s a book about a pattern: the way good science passes through the hands of people with something to lose, and emerges on the other side still technically correct but quietly rearranged to serve someone else. The date label is where that pattern lives right now, on every shelf in every grocery store in America, printed in cheerful fonts above numbers that are managing liability rather than protecting you.

You’ve been reading those labels your entire life. After Sell By, you’ll finally know what they mean — and more importantly, what they don’t.