Quick Answer
For high-temperature conditions, a sourdough starter feeding schedule should be increased to maintain a healthy, active starter. This may involve doubling or tripling the regular feeding frequency, and using cooler water to slow down fermentation. A consistent schedule is crucial.
Optimized Feeding Schedule
In hot climates, a sourdough starter needs more frequent feedings to prevent over-fermentation and maintain a stable population of yeast and bacteria. A good rule of thumb is to increase the feeding frequency by 50% to 100% in temperatures above 75°F (24°C). For example, if you normally feed your starter once a day, try feeding it twice a day in hot weather.
Using Cool Water
When feeding your sourdough starter in high temperatures, it’s essential to use cooler water to slow down fermentation. This will help prevent the starter from becoming too active and producing too much carbon dioxide. Aim to use water between 40°F (4°C) and 50°F (10°C) for feeding, as this will help maintain a healthy balance of yeast and bacteria.
Monitoring Starter Health
To ensure your sourdough starter remains healthy and active in high temperatures, monitor its consistency, smell, and activity levels closely. A healthy starter should be bubbly and have a slightly sour aroma. If you notice any signs of distress, such as a slimy texture or a strong, unpleasant odor, adjust your feeding schedule accordingly.
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