How to Make Pickles
Lacto-fermented pickles are cucumbers preserved through natural fermentation rather than vinegar. Beneficial Lactobacillus bacteria on the cucumber skins convert sugars into lactic acid, creating crunchy, tangy pickles full of probiotics.
Category: Vegetables · Method: Lactic Acid · Time: 3-7d · Difficulty: 1/5 · Yield: ~1L · Temp: 18-22°C
History
Pickle fermentation dates back 4,000 years to ancient Mesopotamia. Cucumbers originated in India and were fermented throughout their journey westward. In America, pickle fermentation was standard until the 20th century when vinegar pickling became dominant for shelf stability.
Ingredients
- 30g - 50g Sea salt — Use a scale for accuracy (3-5% brine). 30g is approx. 2 tbsp fine salt.
- 2-3 heads fresh dill or 1/4 cup dill seed Dill — Flowering dill heads are traditional
Equipment
- Half-gallon or gallon glass jar
- Fermentation weight
- Cloth or airlock lid
- Wooden spoon
Instructions
Prepare cucumbers
Wash cucumbers well and cut off blossom end (contains enzymes that soften pickles). Leave stem end. Cut into spears, slices, or leave whole.
Time: 10 min
Tip: Soak in ice water for 1-2 hours for extra crunch.
Make the brine
Dissolve salt in water. For half-sours, use 2 tbsp per liter (3%). For full sours, use 3 tbsp (5%). Stir until completely dissolved.
Time: 5 min
Tip: Taste brine - it should taste like sea water.
Pack the jar
Layer garlic, dill, and spices in bottom of jar. Pack cucumbers tightly, leaving 2 inches headspace. Add tannin-containing leaves on top.
Time: 10 min
Tip: Pack very tightly - cucumbers shrink during fermentation.
Add brine and weight
Pour brine over cucumbers until completely covered. Add fermentation weight to keep cucumbers submerged. Cover with cloth or airlock.
Time: 5 min
Tip: Cucumbers must stay under brine to prevent mold.
Ferment
Place in cool spot (18-22°C). Ferment for 3-7 days for half-sours, 2-4 weeks for full sours. Taste daily starting day 3.
Time: 3-28 days
Tip: Skim any white kahm yeast from surface - it is harmless but affects flavor.
Fermentation Timeline
- Day 1-2: Fermentation starts — Brine becomes cloudy. Small bubbles appear.
- Day 3-4: Half-sour stage — Pickles are tangy but still taste like fresh cucumber. Bright green color.
- Day 5-7: Three-quarter sour — More sour, olive green color developing. Good crunch.
- Week 2-4: Full sour — Deeply tangy, olive colored throughout. Complex flavor.
Signs of Success & Spoilage
Good signs
- Cloudy brine (normal - this is probiotics)
- Bubbling during active fermentation
- Sour, clean pickle smell
- Firm, crunchy texture
- Olive green color (for full sours)
Warning signs
- Soft, mushy pickles (too warm or blossom end not removed)
- Pink or fuzzy mold
- Foul, rotten smell
- Slimy texture
Troubleshooting
- White film on surface (Kahm Yeast)
- Cause: Exposure to oxygen; non-toxic wild yeast bloom Solution: Skim off immediately as it can affect flavor and soften pickles. Ensure a proper seal and keep pickles fully submerged.
- Soft pickles
- Cause: Blossom end not removed, too warm, or old cucumbers Solution: Always trim blossom end. Ferment in cooler spot. Use fresh cucumbers.
- Hollow pickles
- Cause: Cucumbers were old or grew too fast Solution: Use freshest cucumbers possible. Farm-fresh same-day is ideal.
Storage
Refrigerate when desired sourness is reached. Keep pickles submerged in brine. Keeps 4-6 months refrigerated. Fermentation slows dramatically in the fridge but does not stop completely.
Health Benefits
- Rich in probiotics
- Low calorie snack
- Good source of vitamin K
- Contains electrolytes
- Supports healthy digestion
- No added sugar unlike many store pickles
Serving Suggestions
- Classic side for sandwiches
- Chop for tartar sauce or relish
- Pickle juice for sports drinks
- Deep-fried pickles
- Pickle brine in cocktails
- Pair with charcuterie
Related Vegetables Ferments
Other Lactic Acid Ferments
- Kefir — Dairy
- Yogurt — Dairy
- Hot Sauce — Condiment
- Water Kefir — Beverage
- Fermented Green Beans — Vegetables
- Fermented Okra — Vegetables
- Fermented Asparagus — Vegetables
- Fermented Cauliflower — Vegetables