The ideal temperature for storing millet batters is in the refrigerator, typically between 4°C (40°F) and 7°C (45°F). This helps to slow down fermentation and prevent spoilage.
Millet batters, like other fermented batters, contain microorganisms that break down carbohydrates and produce acids. This process, while desirable for fermentation, can quickly lead to over-fermentation and spoilage if not controlled. Storing the batter at a low temperature significantly slows down the activity of these microorganisms, extending the batter's shelf life and preventing it from becoming overly sour or developing undesirable flavors. Refrigeration is crucial for maintaining the quality and safety of millet batters. Leaving the batter at room temperature will accelerate fermentation, potentially leading to a sour, unusable product within a short period. The cold temperature inhibits the growth of unwanted bacteria and molds, preserving the batter's freshness and preventing foodborne illnesses.
Always store millet batter in an airtight container in the refrigerator. This prevents it from absorbing odors from other foods and further slows down the fermentation process by limiting oxygen exposure.