Fermented Hot Sauce Calculator
Calculate salt brine ratios, fermentation time, and pepper quantities for homemade lacto-fermented hot sauce.
Lacto-fermented hot sauce relies on salt to create an environment where beneficial Lactobacillus bacteria thrive while harmful bacteria are suppressed. Getting the salt ratio right is critical for both safety and flavor.
Brine Percentage Formula
Salt Weight (g) = Total Weight of Mash (g) × Brine Percentage / 100
For a mash-style ferment (peppers blended with salt), the standard range is:
| Brine % | Flavor Profile | Fermentation Speed |
|---|---|---|
| 2% | Mild, fast ferment | 5–7 days |
| 3% | Balanced (most common) | 7–14 days |
| 3.5% | Slightly salty, slower | 14–21 days |
| 5% | Very salty, very slow | 21–30+ days |
The ideal range for hot sauce is 3–3.5% salt by weight.
Pepper Heat Reference (Scoville Heat Units)
| Pepper | SHU Range | Heat Level |
|---|---|---|
| Bell Pepper | 0 | None |
| Poblano | 1,000–2,000 | Mild |
| Jalapeño | 2,500–8,000 | Medium |
| Serrano | 10,000–25,000 | Hot |
| Cayenne | 30,000–50,000 | Very Hot |
| Habanero | 100,000–350,000 | Extremely Hot |
| Ghost Pepper | 855,000–1,041,000 | Super Hot |
| Carolina Reaper | 1,400,000–2,200,000 | Ultra Hot |
Standard Recipe Ratios
A typical fermented hot sauce uses:
- Peppers: 70–80% of total mash weight
- Garlic: 5–10%
- Onion: 5–10%
- Other aromatics: 0–5% (ginger, herbs, fruit)
- Salt: 3–3.5% of total weight
Worked Example
Target: 500 g of pepper mash at 3% salt:
- Peppers (75%): 375 g
- Garlic (8%): 40 g
- Onion (7%): 35 g
- Other (7%): 35 g (e.g., 20g mango + 15g ginger)
- Subtotal: 485 g
- Salt (3%): 485 × 0.03 = 14.6 g (use 15 g)
- Total mash: 500 g
Ferment at room temperature (65–75°F / 18–24°C) for 7–14 days, burping the jar daily. Blend with vinegar (typically 1/4 to 1/3 of total volume) after fermentation for the classic hot sauce consistency.
Post-Fermentation
- Blend the mash until smooth
- Add vinegar to taste (apple cider or distilled white)
- Strain through a fine mesh for smooth sauce, or leave chunky
- Final pH should be below 3.5 for shelf stability