Millet dosa batter typically lasts for 2-3 days in the refrigerator. After this, the fermentation process can make it overly sour.
The shelf life of millet dosa batter in the refrigerator depends on several factors, including the ambient temperature, the cleanliness of the container, and the specific ingredients used. Generally, you can expect it to last for about 2 to 3 days. During this time, the natural fermentation process continues, albeit at a slower rate due to the cold temperature. This fermentation is what gives the dosa its characteristic tangy flavor. However, if left for too long, the batter can become excessively sour and the texture may change, making it less desirable for making dosas. It's best to use the batter within the recommended timeframe for optimal taste and texture. Always check for any signs of spoilage, such as an off smell or visible mold, before using the batter.
To extend the life of your millet dosa batter, store it in an airtight container in the coldest part of your refrigerator. This will help slow down the fermentation process and keep the batter fresher for a slightly longer period.