Quick Answer
To monitor fermentation progress, regularly check for signs such as sour smells, bubbly liquid, and slightly softened vegetables. Use a lacto-fermentation weight or a plate to keep vegetables submerged under their liquid. Take temperature and pH readings with a thermometer and pH meter to ensure optimal conditions.
Monitoring Visual Signs
Monitor your fermentation vessels at least once a day for visual signs of fermentation. Check for a slightly puffed or dimpled appearance on the surface of the vegetables, which indicates gas production. If the liquid has turned cloudy or developed a white scum, it’s a sign that the fermentation process is underway.
Temperature and pH Management
Maintain a consistent temperature between 64°F and 74°F (18°C and 23°C) to promote optimal fermentation. Use a thermometer to check the temperature regularly. Aim for a pH level between 4.2 and 4.6, which is ideal for lacto-fermentation. Use a pH meter to take readings and adjust the environment as needed. If the pH is too high, it may indicate the presence of unwanted bacteria.
Weighing and Submersion
Use a lacto-fermentation weight or a plate to keep the vegetables submerged under their liquid. Weigh down the vegetables within 24 hours of initiating fermentation to prevent mold growth. Check the weight or plate daily to ensure it’s still submerged, and adjust as needed. This will help maintain a healthy environment for the desired lactic acid bacteria to thrive.
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