Ham is made by curing a pig’s hind leg with salt, sugar, and seasonings, often by brining or dry-curing, then sometimes smoking and cooking. Uncooked ham should reach 145°F and rest 3 minutes; reheated fully cooked ham should reach 165°F.
How Ham Is Made is a 4-step process: the pork leg is trimmed, cured with salt and seasonings, sometimes smoked, then cooked or left ready for cooking. Most U.S. ham starts as the hind leg of a pig, not the shoulder or belly.
The cure draws in salt, develops the pink color, and gives ham its firm texture. Smoking adds flavor but does not always mean the ham is fully cooked.
Uncooked fresh or smoked ham should reach 145°F (63°C) with a 3-minute rest; fully cooked ham reheated for serving should reach 165°F (74°C).
The Short Answer, With Numbers
Ham is made by taking the hind leg of a hog, salting it, usually curing it, often smoking it, and then selling it either uncooked, partially processed, or fully cooked.
The key split is simple: uncooked ham must be cooked to 145°F and rested 3 minutes. Fully cooked ham, when reheated, goes to 165°F with no rest.
| Ham type | Safe minimum internal temperature | Rest time |
|---|---|---|
| Ham, fresh or smoked, uncooked | 145°F (63°C) | 3 minutes |
| Ham, fully cooked, to reheat | 165°F (74°C) | None |
What happens to the pork leg
A whole ham starts as one pork leg. The processor trims it, then cures it with salt and other curing ingredients. The cure may be pumped into the meat, rubbed on the surface, or both.
After curing, the ham may be smoked, cooked, dried, or left uncooked. That processing choice is why two hams that look similar can need different final temperatures.
“Fresh ham” means the pork leg has not been cured. It is basically a pork roast shaped like ham. “Uncooked smoked ham” has smoke flavor but still needs full cooking.
“Fully cooked ham” was cooked during processing. You are reheating it, not cooking it from raw, but the relevant reheating target is still 165°F.
Worked examples
If the label says “fresh ham,” roast it until the thickest part reaches 145°F. Start the 3-minute rest only after the thermometer shows 145°F.
If a smoked ham label says “cook before eating,” treat it as uncooked ham. The number is 145°F, followed by a 3-minute rest.
If the package says “fully cooked” and you choose to serve it hot, reheat it to 165°F. No rest time is required for that reheating target.
If a ham is spiral-sliced and fully cooked, the slices can dry fast. The safety target for reheating is still 165°F, but gentle covered heating helps protect texture.
If the bone is in, measure near the center of the thickest muscle, not touching bone. Bone can mislead the reading and make the ham seem hotter than the meat is.
If the ham has a glaze, ignore the glaze temperature. Sugar can get much hotter than the meat. The safe figure comes from the center of the ham itself.
If stuffing is added to ham, the reference data here gives no ham-stuffing rule. Do not use the ham surface or glaze as proof that the center is safe.
The practical answer: ham is made by curing a pork leg, sometimes smoking it, and sometimes cooking it at the plant. Your kitchen number depends on the label: 145°F plus 3 minutes, or 165°F.
What Counts as Ham
Ham is pork from the hind leg of a hog. In U.S. kitchen use, “ham” means that leg cut, whether it is fresh, cured, smoked, cooked, sliced, bone-in, boneless, or canned.
The key boundary is anatomy: ham comes from the rear leg, not the shoulder, loin, belly, or rib. A pork shoulder picnic may taste smoky and salty, but it is not ham because it is not the hind leg.
A whole ham is the entire rear leg. A half ham is usually sold as either the butt end or the shank end. The butt end is the upper portion; the shank end is the lower portion closer to the hock.
For a concrete example, a 16-pound whole ham can be split into about an 8-pound butt half and an 8-pound shank half, though real cuts vary with trimming, bone, and fat cover.
Fresh Ham vs. Cured Ham
Fresh ham is an uncured pork hind leg. It is raw pork, not the pink, salty holiday ham many shoppers picture. It cooks like a pork roast and must reach 145°F with a 3-minute rest.
Cured ham has been treated with salt, curing ingredients, or brine. Curing changes flavor, color, and texture. Many cured hams are also smoked, but smoking is not what makes the cut a ham.
A ham can be cured but not smoked. It can be smoked and still need cooking if it was not fully cooked during processing. The label matters more than the color or smoke aroma.
Fully cooked ham has already been cooked by the processor. If reheated, it should reach 165°F. This includes many spiral-sliced, city-style, and packaged holiday hams.
Uncooked ham includes fresh ham and some cured hams labeled “cook before eating.” For uncooked fresh or smoked ham, use 145°F plus a 3-minute rest.
Names That Are Ham, and Names That Are Not
“Spiral ham” describes slicing, not a different animal part. If it is made from the hind leg, it counts as ham. The spiral cut just means the meat was sliced around the bone in a continuous pattern.
“Country ham” is ham because it is the cured hind leg. It is usually dry-cured and salty. The term describes the curing style, not a separate cut.
“City ham” is also ham. It is commonly wet-cured in brine and often sold fully cooked. Again, the name describes processing, not anatomy.
“Ham steak” counts when it is a cross-cut slice from a ham. A 1-inch slice from the hind leg is a ham steak; a 1-inch slice from pork shoulder is not.
“Ham hock” is an edge case. It comes from the lower leg joint area, often used for seasoning beans or greens. It is related to the ham end, but it is not the meaty main ham roast.
“Canadian bacon” is not ham in the strict cut sense. It is usually made from pork loin, not the hind leg. It may be cured and round-sliced, but loin is not ham.
“Turkey ham” is not pork ham. It is a processed turkey product shaped or flavored to resemble ham. Because it is poultry, not pork hind leg, it does not count as ham in the traditional cut definition.
A reliable test is 3-part: animal, cut, and label. Pork plus hind leg plus a ham label is ham. If one part fails, such as pork shoulder or turkey, treat it as a different product.
The Cuts Used for Ham
Ham is made from the hind leg of a pig. In U.S. labeling, “ham” means the cured or uncured meat from the rear leg, usually including the thigh, rump, shank, and sometimes part of the aitch bone area.
A whole ham is one rear leg. Retail whole hams commonly run about 10 to 20 lb, depending on hog size and trim. The same leg can be sold whole, cut in half, sliced into steaks, or deboned and pressed.
Whole Ham: Butt End and Shank End
A whole bone-in ham is usually divided into 2 main retail cuts: the butt end and the shank end. Each is roughly half the leg, but they cook and carve differently because of bone shape and muscle layout.
| Cut | Where it comes from | Typical traits | Best use |
|---|---|---|---|
| Butt end | Upper rear leg, near hip | Meatier, more rounded, has hip and pelvic bones | Holiday carving when yield matters |
| Shank end | Lower rear leg, near hock | More tapered, easier central bone, slightly less meat | Clean slices and classic presentation |
| Center slices | Cross-cuts from the middle of the leg | Usually 1/2 to 1 inch thick, often bone-in | Skillet ham steaks |
| Hock portion | Lowest end near the ankle | More skin, bone, connective tissue | Beans, greens, soups |
The butt end often gives the highest edible meat yield, but it is harder to carve neatly. The pelvic bone creates irregular slices, so it is better when you want chunks, thick slices, or diced ham.
The shank end has a straighter leg bone, so slices come off in cleaner pieces. It usually has less meat per pound than the butt end, but it is easier for table carving.
Bone-In, Semi-Boneless, and Boneless Ham
Bone-in ham keeps the femur, shank bone, or hip bones. It has the most traditional shape and strong flavor from the bone, but the purchased weight includes bone you will not eat.
Example: a 12 lb bone-in ham at 65% edible yield gives about 7.8 lb usable meat. At 1/3 lb per person, that serves about 23 people. At 1/2 lb per person, it serves about 15 people.
Semi-boneless ham has some bones removed, often the hip or pelvic bones, while leaving the main leg bone. It is easier to carve than fully bone-in ham but still has a natural ham shape.
Boneless ham is made by removing the bones, then tying, netting, or molding the muscles. It slices evenly and has nearly 100% edible yield, but it lacks the bone-in look.
Example: an 8 lb boneless ham at 95% edible yield gives about 7.6 lb usable meat. That is almost the same edible amount as a 12 lb bone-in ham at 65% yield.
What Is Not Technically Ham
Pork shoulder, also called picnic shoulder, can be cured and smoked like ham, but it is not true ham because it comes from the front leg. It is fattier, more connective, and usually cheaper per pound.
“Ham hocks” come from the lower leg and may be from the front or rear. They are not a main slicing ham. Use them when you want collagen, smoke, and seasoning power rather than large slices.
If the label says “fresh ham,” it is the uncured hind leg. Cook fresh or uncooked ham to 145°F (63°C) and rest it 3 minutes. Reheat fully cooked ham to 165°F (74°C).
How Ham Is Cured
Ham is cured by moving salt, sugar, and curing agents into pork leg muscle until the meat is seasoned through and protected against spoilage organisms during later smoking, cooking, or aging.
The starting cut is the hind leg of a hog. A whole ham commonly weighs 15 to 25 lb before trimming. Processors trim excess fat, remove ragged muscle, and choose either bone-in, semi-boneless, or boneless curing.
Wet Cure: Pumped or Immersion-Cured Ham
Most supermarket ham is wet-cured. A brine is made with water, salt, sugar, sodium nitrite, and often phosphates. The brine is injected through multi-needle pumps so cure reaches the center quickly.
A typical pumped ham may gain 8% to 12% of its green weight from brine. A 20 lb fresh leg pumped 10% takes in 2 lb of cure solution, becoming 22 lb before tumbling, smoking, or cooking.
After pumping, hams are tumbled or massaged. Tumbling for several hours distributes cure, extracts myosin from muscle, and helps slices hold together instead of crumbling after cooking.
Immersion curing is slower. The ham sits in brine while salt and nitrite diffuse inward. Large bone-in hams need more time than boneless pieces because the cure must travel farther into dense muscle.
Dry Cure: Salt Rubbed Into the Meat
Dry-cured ham is rubbed with salt, sugar, and curing ingredients, then held so moisture leaves the meat and salt moves inward. No pump water is added, so the finished ham is firmer and more concentrated.
A practical dry-cure example: a 20 lb fresh ham losing 18% of its weight during curing and drying finishes near 16.4 lb. That weight loss is part of the style, not a defect.
Country ham and prosciutto-style ham depend on this slow dehydration. The salt level is higher than in city ham, and flavor develops during a long equalizing and aging period.
What Nitrite Does
Nitrite is used in cured ham for 3 jobs: it stabilizes the pink cured color, contributes the cured flavor, and helps control dangerous bacteria when used with salt, heat, drying, or acidity.
Without nitrite, cooked pork leg turns gray-brown like a pork roast. With nitrite, it develops the familiar rosy ham color after heating and curing reactions.
Edge Cases: Fresh, Uncooked, and Fully Cooked Ham
“Fresh ham” is not cured. It is simply raw pork leg and cooks like a pork roast. The safe minimum internal temperature for fresh or smoked uncooked ham is 145°F with a 3-minute rest.
“Fully cooked” ham has already been heat-processed. If reheating a fully cooked ham, heat it to 165°F. That figure applies to reheating; it does not describe the curing step itself.
“Ham with natural juices,” “water added,” and “ham and water product” differ mainly by how much added solution remains after processing. More retained brine means a juicier but less concentrated slice.
The key control is even cure distribution. A thick 24 lb bone-in ham needs more cure reach than a 6 lb boneless muscle, so processors adjust pumping pattern, needle spacing, tumbling, and hold time.
Main Ham Making Steps
Ham is made by turning a pork leg into a cured, sometimes smoked, and sometimes cooked product. The key variables are leg weight, cure amount, salt level, time, smoke, and final heating target.
From Pork Leg to Finished Ham
- 1. Trim and weigh the pork leg. Start with a fresh hind leg, often 10 to 25 lb. Remove loose fat, ragged edges, glands, bruised spots, and skin only if the ham style calls for it. Weight matters because cure is calculated from meat weight.
- 2. Choose the curing style. Wet-cured ham is injected or soaked in brine. Dry-cured ham is rubbed with salt-based cure. For a 20 lb leg, a 10% pump means adding 2 lb of brine by injection, bringing the green weight to about 22 lb.
- 3. Apply salt, sugar, and curing ingredients evenly. A basic wet cure is mostly water plus salt, sugar, and curing salt. Injection must reach thick muscles near the bone; otherwise the center can remain gray while the outer meat turns pink.
- 4. Let the cure equalize. Large hams need time for salt and cure to move inward. A thin boneless piece cures faster than a bone-in 22 lb leg. The edge case is the shank end: narrow meat cures quickly, while the thick butt end lags behind.
- 5. Rinse, net, or shape the ham. After curing, many hams are rinsed to remove surface cure. Boneless hams may be tumbled, pressed, and netted. Bone-in hams keep their natural shape, but the aitch bone or shank may be trimmed for appearance.
- 6. Smoke or cook, depending on the product. Smoke adds color and flavor, not just preservation. A ham labeled uncooked still needs cooking by the buyer. Fresh or smoked uncooked ham must reach 145°F (63°C) and rest 3 minutes.
- 7. Finish, chill, slice, or package. Fully cooked ham is heat-processed before sale. If reheated later, it must reach 165°F (74°C). A 9 lb fully cooked spiral ham and a 3 lb ham steak use the same reheating temperature target.
Worked Example: 18 lb Bone-In Ham
An 18 lb pork leg trimmed to 17 lb 8 oz can be wet-cured with a 10% pump. That adds about 1 lb 12 oz of brine, so the pumped ham weighs about 19 lb 4 oz before resting, smoking, and finishing.
If that ham is sold as uncooked, the home cook treats it like uncooked ham: 145°F (63°C) plus a 3-minute rest. If it is fully cooked, reheating requires 165°F (74°C).
Common Edge Cases
A “fresh ham” is pork leg that has not been cured. It cooks like uncooked ham, not like a ready-to-eat city ham. The word “ham” describes the cut, but the label tells you whether curing or cooking already happened.
Stuffed ham changes the target. Because the reference category is stuffed chicken and turkey only, no separate stuffed-ham temperature is stated here. Use only the product label or a verified USDA/FDA direction for that item.
How Ham Is Cooked or Smoked
Ham is cooked or smoked after curing, and the label tells you what the heat step already accomplished: “fresh,” “cook before eating,” “fully cooked,” or “ready to eat.” Treat each one differently.
Fresh or Uncooked Ham
Fresh ham is the hind leg of pork that has not been cured. Uncooked cured ham is cured but still needs full cooking. Both must reach 145°F (63°C) in the thickest part, then rest 3 minutes.
Example: a 9 lb fresh ham is not done because the outside is browned or the juices run clear. It is done only when a thermometer reads 145°F away from bone, fat pockets, and the pan.
For a bone-in ham, insert the probe from the side toward the center of the largest muscle. Do not touch bone; bone can give a misleading reading and make an undercooked area look finished.
For a boneless rolled ham, check the center of the roll. If the ham is tied unevenly, check both the thick end and the narrow end. Use the lower reading to decide whether it is done.
Fully Cooked Ham
A fully cooked ham has already been heated by the processor. If you serve it cold, follow the package directions. If you reheat it, heat leftovers-style to 165°F (74°C).
Worked example: a spiral-sliced fully cooked ham has many cut surfaces. If reheating, place the thermometer into the deepest intact meat, not into the gap between slices, and look for 165°F.
Edge case: a ham labeled “fully cooked” but stuffed, sauced, or combined into a casserole changes category. A casserole containing meat or poultry must reach 165°F (74°C).
What Smoking Does
Smoking adds flavor, color, and surface drying. It may be paired with curing, cooking, or both. The word “smoked” alone does not prove the ham is ready to eat.
Cold-smoked style hams may look finished because the surface is dark and aromatic. If the label says “cook before eating,” use the uncooked ham target: 145°F plus a 3-minute rest.
Hot-smoked hams may be fully cooked by the manufacturer. If the label says “ready to eat,” it can be served as sold. If reheated, use 165°F as the endpoint.
| Ham type | What to do | Internal temperature | Rest |
|---|---|---|---|
| Fresh ham | Cook fully | 145°F (63°C) | 3 minutes |
| Uncooked cured ham | Cook fully | 145°F (63°C) | 3 minutes |
| Fully cooked ham, reheated | Reheat | 165°F (74°C) | None |
| Ham in a meat or poultry casserole | Cook or reheat casserole | 165°F (74°C) | None |
If one part reads done and another does not, keep cooking. A ham is judged by the coldest safe reading in the thickest edible portion, not by color, smoke ring, glaze, or package photo.
Frequently Asked Questions
What part of the pig is ham made from?
Ham is made from the hind leg of a pig. The whole leg can be sold as a full ham, or it may be divided into shank and butt portions. Some products labeled “ham” are formed from pieces, but traditional ham starts with the pork leg.
How is ham cured?
Ham is cured by adding salt, usually with sugar and curing agents, to the pork leg. The cure may be rubbed on dry or injected as a brine. Curing firms the meat, changes the flavor, and helps create ham’s pink color.
What is the difference between cured ham and smoked ham?
Cured ham has been treated with salt or brine. Smoked ham is cured ham that is also exposed to wood smoke for flavor and color. A ham can be cured but not smoked, smoked after curing, or cooked after both steps.
Is ham cooked before you buy it?
Some ham is fully cooked, and some is uncooked. The package label is the key: look for terms like “fully cooked,” “cook before eating,” or “fresh ham.” Fresh or uncooked ham should reach 145°F and rest 3 minutes. Fully cooked ham reheated should reach 165°F.
How is deli ham made?
Deli ham is usually made by curing pork with brine, then cooking it in molds or casings so it slices evenly. Some deli hams are made from whole muscles, while others are formed from multiple pieces. Water, salt, sugar, and seasonings affect texture and flavor.
