What You Need to Know
Acidic pickling lowers the pH of the food environment to 3.0–4.0, typically by adding 5–10 % vinegar (acetic acid) or 3–5 % citric acid, which inhibits most spoilage microorganisms. During lacto‑fermented pickling, lactic acid bacteria convert sugars to lactic acid, reducing the pH to 3.0–3.5 within 24–72 h at 20–25 °C. The final product is then stored at 4–10 °C to maintain safety.
The Science
Primary Reaction
Acidification of the food matrix by addition of acetic or lactic acid, lowering pH to inhibit microbial growth.