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How Parma ham is made, step by step

Pork legs, sea salt, the dry air of the hills and at least fourteen months of patience: nothing else goes into Prosciutto di Parma. Follow a ham from the salting table to the fire of the crown brand.

Whole cured hams with round producers' tags hanging on ropes against a dark wooden wall
Finished hams, each one the work of more than a year.

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Prosciutto di Parma is a whole pork leg on the bone, cured with sea salt and time in the hills south of Parma. The method is fixed by the rules of the Consorzio del Prosciutto di Parma, founded in 1963, and new rules approved in 2025 made it stricter.

Below: the ingredients, every step in order with its timing, salting, resting and drying, sugnatura, how long it ages, the needle test, the crown, and the numbers behind it.

The quick answer

Fresh legs are salted with sea salt, rest for 60 to 90 days in cold rooms, are washed, dried and pre-cured for about three months, then sealed with a paste of lard on the lean face and cured in cellars. After at least 14 months (12 before the 2025 rules), an inspector tests each ham with a horse-bone needle, and those that pass are fire-branded with the five-pointed ducal crown.

A hand scattering coarse sea salt over a fresh pork leg on a white table
Salting: sea salt, and nothing else.

What is Prosciutto di Parma made of?

Pork legs and sea salt. No nitrites, nitrates or other preservatives are allowed.

The legs come from heavy pigs born and raised in northern and central Italy; the 2025 rules also call for heavier fresh legs than before. The curing happens only in the hills of the province of Parma, at least 5 km south of the Via Emilia and up to 900 metres above sea level, where the air off the Apennines does much of the work. People here have salted pork legs for a very long time: Cato the Censor wrote about it in the 2nd century BC, and a local legend says Parma offered hams to Hannibal.

What are the steps of making Parma ham?

Salting, resting, washing, drying and pre-curing, sugnatura, curing, the needle test and the crown: at least 14 months from fresh leg to branded ham.

Timings from the Consorzio del Prosciutto di Parma. Along the way, the leg loses more than a quarter of its weight.

StepWhat happensHow long
1. SaltingHumid sea salt on the rind, dry salt on the lean, at 1 to 4 CAbout a week, then a second salting of 15 to 18 days
2. RestingCold rooms at about 75 to 80% humidity, so the salt spreads evenly60 to 90 days
3. WashingWarm water and brushing remove the saltA short step
4. Drying and pre-curingVentilated rooms with large windowsAbout 3 months
5. SugnaturaThe lean face is covered with minced lard and saltOnce, before curing
6. CuringCellars, from the 7th month onUntil at least month 14, often 24 to 36
7. Needle testAn inspector pierces the ham with a horse-bone needle and smells itSeconds per ham
8. The crownApproved hams are fire-branded with the ducal crown and PARMAAt the end

How is Parma ham salted?

By a salt master, with humid sea salt on the rind and dry salt on the lean meat, in rooms kept at 1 to 4 C: about a week, then a second salting of 15 to 18 days.

The salt master uses as little salt as the ham needs, and the 2025 rules lowered the maximum salt content further. The Consorzio says this is why Prosciutto di Parma tastes less salty than many other cured hams: sweetness is the aim.

Shelves of salted fresh pork legs stacked from floor to ceiling in a cold room
Salted legs on racks in a cold room.

Stand in the cold salting rooms yourself, with a guide from a working maker and a van from Parma station.

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Why do the hams rest and dry for months?

The 60 to 90 days in cold, humid rooms let the salt spread slowly through the meat. Then the hams are washed with warm water, brushed and dried for about three months in rooms with large windows.

This is where the hills matter. The large windows let in the dry, breezy air of the Parma hills, which slowly draws the moisture out. On a tour you feel the change as you move from the chilled salting rooms into the milder, scented halls.

Hundreds of hams hanging close together on steel racks in a drying room
Drying rooms: hams on racks, and air doing the work.

What is sugnatura?

Covering the exposed lean face of the ham with sugna, a paste of minced lard and salt, so the meat stays soft and does not dry out too fast.

It is the grey-white layer you see on the cut face of every ham in a curing hall. The rind protects the rest of the leg; the sugna protects the lean where there is no rind.

Close-up of cured hams hanging in rows, the lean faces covered with a pale grey paste
Sugnatura: the grey paste on the lean face is lard and salt.
Prosciutto di Parma Tour with Tasting

Watch the ham's whole year in one visit: salting machines, refrigeration cells, the maturing rooms and the crown.

★ 4.6 64 reviews · 2h 30m · from $99

Explore the Parma ham maker tour

How long is Parma ham aged?

At least 14 months under the rules approved in 2025, up from 12. Many hams cure for longer, some for 24 or even 36 months.

Curing moves to cellars from the seventh month. The new rules, approved by the European Commission in 2025 after four years of revision, also reduced the salt, called for heavier legs and extended the area where the pigs may be raised. The minimum is a floor, not a target: the age of a ham is part of what you taste.

A long corridor of hams on wooden racks with a worker in a white coat walking between them
The curing halls, where the months are counted.

What is the horse-bone needle test?

At the end of curing, an inspector pierces each ham in several points with a needle made of horse bone and smells it. The bone takes up the aroma for a moment, and the nose decides.

It takes seconds per ham and is the one moment every visitor remembers. Ask your guide to show you the needle; on the ham maker tour the tapping and the branding are explained in the maturing rooms. The dairies have their own version: Parmigiano wheels are tapped with a hammer.

A bone needle pushed into the rind of a cured ham beside the fire-branded crown
A needle of horse bone, next to the crown it decides on.

See the dairy and the ham maker in one morning, rated 4.9 from 955 reviews.

Check dates for the Parmigiano and Parma ham tour

What does the crown on Parma ham mean?

It is the five-pointed ducal crown with the word PARMA, fire-branded on every ham that passes the final inspection. Only crowned hams may be sold as Prosciutto di Parma.

About 127 authorised producers branded 6.7 million hams in 2024, and 38% were exported. The industry employs about 3,000 people in the province and about 50,000 along the whole supply chain. Most of the makers are around Langhirano, the ham town, whose museum tells the story: Langhirano and the ham museum. How to find the crown when you shop is in how to buy and eat Parma ham.

The ducal crown and the word PARMA fire-branded into the rind of a ham, with a producer number below
The crown, with the producer's number below it.

Frequently asked questions

Does Parma ham contain nitrates?

No. Only pork legs and sea salt are allowed; no nitrites, nitrates or other preservatives.

How long does it take to make Parma ham?

At least 14 months under the 2025 rules, and often 24 months or more.

Where is Parma ham made?

Only in the hills of the province of Parma, at least 5 km south of the Via Emilia and up to 900 metres; Langhirano is the centre.

How many Parma hams are made each year?

About 6.7 million hams were branded in 2024, by about 127 producers.

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Prosciutto di Parma Tour with Tasting

Prosciutto di Parma Tour with Tasting

★ 4.6 64 reviews · 2h 30m

  • Transfer from Parma in an air-conditioned van
  • Guided visit of a Prosciutto di Parma maker, cold and warm phases
  • The salting rooms, the maturing halls and the needle test
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Parmigiano and Parma Ham Production Tour

Parmigiano and Parma Ham Production Tour

★ 4.9 955 reviews · 4 hours

  • Pickup and drop-off at points in Parma
  • Parmigiano Reggiano dairy and aging room
  • A family Prosciutto di Parma maker in the hills
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Parmigiano and Prosciutto Private Tasting Tour

Parmigiano and Prosciutto Private Tasting Tour

★ 5.0 89 reviews · 5h 30m

Your own guide at a dairy and a ham plant

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A working Prosciutto di Parma maker, from the cold salting rooms to the curing halls, with a van from Parma station and a tasting.

Check dates for the Parma ham maker tour