Vegetable · pepper

Lacto-fermenting mixed hot peppers: 2.50% salt, 7.0days at 68 °F

Habanero, Fresno, Serrano, Cayenne blends. Higher-heat peppers (habanero 100k-350k SHU) work identically to jalapeño for fermentation — capsaicin does not inhibit Lactobacillus. Mixed blends produce more complex final flavor.

Salt calculator

Enter your vegetable weight and a salt percentage. We return the exact salt mass in grams, plus teaspoons for each common grain.

grams
%

Grain matters: one teaspoon of Diamond Crystal weighs half as much as one teaspoon of fine sea salt. Weigh in grams when you can.

25g salt
4.39 tsp 1.46 tbsp 0.88 oz

Based on Fine sea salt at 5.69 g/tsp.

Safe range for lacto-fermentation. 2% is the most common default for cabbage, kimchi and pepper mash.

All salt grains
GrainGramsTeaspoonsTablespoons
Diamond Crystal kosher25 g8.82.93
Morton kosher25 g5.211.74
Fine sea salt25 g4.391.46
Pickling / canning25 g4.551.52
Default salt
2.50 %
Salt range
2.00% – 3.50%
Time @ 68 °F
7.0 days
Target pH
3.50
Water content
~88%
Preferred styles
lacto hot sauce, fermented salsa

Technique

Same as jalapeño. Mix ratios to taste: 60% mild (jalapeño/fresno) + 30% medium (serrano) + 10% hot (habanero) is a balanced starting point. For Tabasco-style: 100% tabasco peppers, aged 30-60 days.

Source: NCHFP — Hot Sauce Fermentation. Last verified 2026-05-17.

Frequently asked questions

What percent salt for fermenting mixed hot peppers?

2.50% by weight is the default for mixed hot peppers (workable range 2.00%–3.50%). For 1000g mixed hot peppers, that's 25.0g salt. Use non-iodised salt and weigh in grams — teaspoon equivalences vary by salt grain. Source: NCHFP — Hot Sauce Fermentation.

How long to ferment mixed hot peppers?

7.0 days at 68°F (20°C). Cooler kitchens (60-65°F) slow fermentation; warmer kitchens (75-80°F) roughly halve the time per 10°F increase. Start tasting from day 5; target pH 3.50 or below indicates complete primary fermentation.

What's the best technique for fermenting mixed hot peppers?

Same as jalapeño. Mix ratios to taste: 60% mild (jalapeño/fresno) + 30% medium (serrano) + 10% hot (habanero) is a balanced starting point. For Tabasco-style: 100% tabasco peppers, aged 30-60 days.

What category is mixed hot peppers for fermentation?

Mixed Hot Peppers is a pepper vegetable. Habanero, Fresno, Serrano, Cayenne blends. Higher-heat peppers (habanero 100k-350k SHU) work identically to jalapeño for fermentation — capsaicin does not inhibit Lactobacillus. Mixed blends produce m… Preferred fermentation style: lacto-hot-sauce, fermented-salsa.