pork Belly
Bacon
In the US, bacon is pork belly cured with salt and sodium nitrite, then usually smoked and sliced thin. The cure is what separates it from roast pork — it fixes the color, preserves the meat, and builds the flavor. Elsewhere the same word means a different cut: British back bacon is loin.
In one line
Salt and nitrite make it bacon; the smoke is optional.
Buy it if
You'd rather buy the cure than run one — a home cure takes a week and a scale that reads grams.
The cure is a chemical reaction, not a seasoning. Sodium nitrite reacts with myoglobin, the pigment in muscle, and locks it into a form that stays pink through cooking — which is why a cooked strip is rosy rather than grey. The same reaction builds the cured flavor, and the nitrite holds off Clostridium botulinum in a salty, low-oxygen environment where little else can grow. Smoke goes on afterwards, and plenty of the world's bacon skips it entirely.
Wet cure, dry cure, and what you carry home. Supermarket bacon is nearly all pumped: brine injected through needles, cured in hours. Dry-cured bacon is rubbed with salt and cure and rested for days, losing water the whole time. You see the difference in the pan — the pumped strip gives up the brine it was sold to you with, steams before it browns, and shrinks hard. A pack labeled plainly "Bacon" can't finish heavier than the fresh belly it came from; past that, USDA makes the label say "Bacon, Water Added."
"Uncured" bacon is cured. The celery juice powder on that ingredient list is a concentrated nitrate source, and bacteria in the cure turn it into nitrite. Same molecule, same pink, same preservation — the label is a US rule about added ingredients, not a different process. If anything the dose is harder to control than measured nitrite is.
Not all bacon is belly. American bacon is streaky belly. British and Irish back bacon is loin with a tail of belly attached — much leaner, closer to a thin chop, and often unsmoked. Jowl bacon is the cheek: fattier, more gelatinous, the traditional fat for a pot of greens. Pancetta is belly cured Italian-style and left unsmoked.
Price it per slice, not per pound. Weight is a poor guide when part of it is brine and a thick-cut pack fits fewer, heavier slices into the same box.
Where it comes from on the animal
| Species | pork |
|---|---|
| Primal | Belly |
| Subprimal | cured belly (pork side) — the same rectus abdominis and abdominal oblique layers as fresh belly; back bacon is loin instead, jowl bacon is cheek |
What else it’s called
How to cook Bacon
| Best methods | Pan sear Oven roast Griddle Air fry |
|---|---|
| Skip | Grill |
| Cook to | You're cooking bacon for texture, not for doneness, so there's no target temperature. Pull it a shade softer than you want it — it crisps as it cools. |
Start it in a cold pan over medium-low, or on a rack in a 400°F oven. The fat has to render before the lean tightens; a hot pan sets the muscle first and the strip curls around fat that never got out.
The oven wins for more than a few strips — flat, even, hands-off, and you pour the fat off at the end instead of fighting it. Keep it off a grill grate, though: rendering fat falling onto an open flame is a flare-up, not a sear.
Common questions
Are the nitrites in bacon something to worry about?
The concern isn't nitrite itself — your own saliva produces it, and leafy vegetables carry far more nitrate than bacon does. It's that nitrite, meat and high heat together can form nitrosamines. US bacon is cured with ascorbate or erythorbate alongside the nitrite for exactly that reason: it blocks most of the reaction. Cooking it to crisp rather than to charcoal blocks more.
How long does bacon actually keep in the freezer?
Less time than fresh pork, which surprises people — salt speeds up fat oxidation. USDA's freezer chart gives bacon about a month for quality, against four to twelve months for fresh pork chops. Older bacon isn't unsafe, it goes stale and cardboardy. Freeze slices flat and separated so you can pull two off without thawing the pack.
Is slab bacon worth buying?
If you want thickness control, yes. It's the same cured belly unsliced, so you can cut lardons or half-inch planks that no supermarket pack sells, and it keeps longer with less surface exposed. The catch is that it's a soft, fatty rectangle to cut — chill it hard first or the knife drags.
What should I do with the grease?
Strain it while it's still warm and keep it in the fridge, where it lasts for months. It arrives already salted and smoky, so season lightly in anything you fry with it, and skip it where you want a neutral flavor. Don't pour it down the drain — it sets solid in the trap.
