Grind very cold
Meat at −2 °C and fat at −5 °C. The cut must be clean: defined grain, not paste.
Dry cured
Fermented salami
Dry cured product is not cooked: it is stabilised. Safety does not come from heat but from three barriers that must fall in order — pH, water activity and nitrite. If one arrives late, the batch is a hazard.
Formulation per 100 kg of batter
| Component | Amount | Why it is there |
|---|---|---|
| Lean pork | 65 – 70 kg | Selected lean, free of sinew and lymph nodes. PSE meat is useless: it will not hold and it weeps. |
| Back fat | 25 – 30 kg | Firm and very cold. Soft fat smears and seals the pores: the salami will not dry inside. |
| Common salt | 2.6 – 2.8 kg | Higher than in scalded products: here it is a barrier, not just flavour. |
| Curing salt | 0.25 kg | Nitrite, and in long cures also nitrate as a slow reserve. |
| Dextrose | 0.6 – 0.8 kg | It is the fuel of fermentation. With no available sugar the pH will not drop. |
| Starter culture | per supplier | Lactobacillus sakei or curvatus (acidify) + Staphylococcus carnosus or xylosus (colour and aroma). |
| Pepper, garlic, wine | 0.3 – 0.6 kg | Profile according to style. |
Process
Step by step, with the temperatures.
Mix and inoculate
Short mix. The culture is rehydrated separately and added last, never alongside dry salt.
Stuff
Permeable casing, natural or collagen. No air: an internal bubble is a green-mould focus.
Ferment
22 – 24 °C at 90 – 92 % humidity, 48 to 72 h, until pH is below 5.3. This is the critical phase.
Dry
Drop to 12 – 15 °C and step the humidity down: 85 % → 80 % → 75 %. Never in one move.
Age
21 to 90 days depending on calibre, until 30 to 40 % of the initial weight is gone.
| Control point | Value |
|---|---|
| pH at end of fermentation | < 5.3 |
| Target water activity (aw) | < 0.90 |
| Total weight loss | 30 – 40 % of stuffed weight |
| Fermentation temperature | 22 – 24 °C |
| Drying temperature | 12 – 15 °C |
| Ageing by calibre | 21 days (40 mm) to 90 days (90 mm) |
Troubleshooting
What went wrong, and why.
Half the craft is reading the defect. These are the ones that keep coming back.
| What you see | What caused it |
|---|---|
| Case hardening | Humidity was dropped too fast: the surface sealed and the inside stayed wet. The most common defect, and there is no fixing it. |
| pH will not drop | Not enough dextrose, culture killed by contact with dry salt, or the room is too cold. |
| Green or black mould | Excess humidity and stagnant air. White Penicillium nalgiovense, on the other hand, is desirable and protective. |
| Smeared fat and salami that will not dry | Fat too warm when ground. It blocks the channels water needs to leave by. |
Frequently asked
What people ask before they start.
Can I make salami without a starter culture?
You can, depending on the natural flora of the meat, and that is how it was done for centuries. But it is a lottery: if acidification is slow, pathogens such as Staphylococcus aureus get a window. At industrial scale a directed culture is not a luxury, it is how the risk is controlled.
Why is the weight loss so high?
Because the weight loss is the product: losing 35 % of the water is what takes water activity below 0.90 and makes salami stable without refrigeration. A salami that lost 15 % is not a young salami, it is dangerous raw meat.
What if my chamber has no humidity control?
Then there are no cured products. Dry air gives case hardening and humid air gives mould and rot. Before you buy a stuffer, you buy humidity control.
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