Canned meat

Canned meat (tinned meat) is meat packed into a can, hermetically sealed and heated above 100 °C, usually at 110–121 °C, to destroy all bacteria including their spores. According to the FAO meat-processing manual, practically every meat product in tin cans, glass jars or retort pouches is treated this way, which is why it keeps at room temperature.

It all began with a prize. In 1795 Nicolas Appert received 12,000 francs from Napoleon for meat and poultry corked in glass bottles and boiled, USDA FSIS recounts. In 1810 Peter Durance patented metal containers in England, and in 1821 William Underwood opened a plant in Boston. Canning is a joint effort of the French, the British and Americans.

What goes inside? The two best-known kinds have their own Codex Alimentarius standards from 1981. Corned beef is chopped, cured boneless beef that may include head meat, heart and skirt. Luncheon meat is comminuted, cured meat or poultry, with or without binders. Spain's RD 474/2014 also lists canned sausages, canned chóped and canned pork among sterilised products.

The method is short: fill, vacuum-seal, heat in a retort, cool. As the can cools, USDA FSIS notes, a vacuum seal forms. Heat is measured as an F-value, where F 1 equals 1 minute at 121 °C. Killing botulinum spores takes F 2.5, and canned meat, says FAO, is made at F 4.0–5.5 and 117–130 °C. Luncheon meat is sterilised at 112–115 °C, corned beef and meat in gravy at 118–121 °C.

Pasteurised meat in a can is another story: it is heated below 100 °C, must be kept at 0–5 °C, and the label has to say so. Canned hams marked «Keep Refrigerated», according to USDA FSIS, last 6–9 months in the fridge only. Jamón, Dry-cured sausages and Jerky, says FAO, are unsuitable for canning because low acidity and little water already preserve them. Spaniards once tinned something else: in 1890 a La Rioja trader offered Chorizo in tins with lard.

How do you pick a can? Codex requires the name «Corned Beef» or «Luncheon Meat» and a minimum durability date by year; luncheon meat that will not last 18 months must show day, month and year. Skip bulging, rusty, leaking or deeply dented cans. If a can hisses loudly or spurts when opened, do not eat what is inside.

USDA FSIS gives canned meat 2–5 years on the shelf, best below 85 °F (29 °C) and never above 100 °F (38 °C); FAO says up to 4 years at 25 °C. Once opened, eat it within 3–4 days from the fridge, ideally moved to glass or plastic. Nitrite is there, as in Curing of meat: since 9 October 2025 the EU caps it at 55 mg/kg added.

Why this matters to you: sterility, not preservatives, keeps the can safe. It still will not last forever, since rust, corrosion and heat shorten its life. For related foods see Cured meats & charcuterie.