While you *can* store soaked tamarind pulp in clay jars, it's generally not recommended for long-term storage due to potential mold growth and the porous nature of clay. Glass or food-grade plastic containers are better options.
Tamarind pulp, especially when soaked, has a high moisture content and acidity. Clay jars, being porous, can absorb some of this moisture. This creates a favorable environment for mold and bacterial growth, potentially spoiling the tamarind pulp and making it unsafe for consumption. Furthermore, the clay itself might impart an earthy flavor to the tamarind over time, altering its taste. While some traditional methods involve using clay pots for short-term storage or fermentation, modern food safety practices generally favor non-reactive, airtight containers. Glass jars with tight-fitting lids or food-grade plastic containers are ideal because they don't react with the tamarind, prevent moisture absorption, and minimize the risk of contamination. To store soaked tamarind pulp properly, first ensure it's completely cooled after soaking. Then, transfer it to a clean, airtight container. You can store it in the refrigerator for up to a week or freeze it for longer storage (several months). Freezing is an excellent way to preserve the flavor and prevent spoilage.
To extend the shelf life of your tamarind pulp, consider adding a small amount of salt during the soaking process. Salt acts as a natural preservative and can help inhibit the growth of unwanted microorganisms.