The best way to preserve rasam paste is to store it in an airtight container in the refrigerator for up to a week or freeze it in ice cube trays for longer storage (up to 2-3 months).
Rasam paste, a flavorful blend of spices and ingredients, can be a time-saver when preparing this South Indian soup. However, it's crucial to store it properly to maintain its freshness and flavor. Here's a step-by-step guide:
Cool the Paste: Allow the rasam paste to cool completely after preparation. This prevents condensation from forming inside the container, which can lead to spoilage.
Airtight Container: Transfer the cooled paste to a clean, airtight container. Glass or BPA-free plastic containers are ideal.
Refrigeration: Store the container in the refrigerator. The cold temperature slows down the growth of bacteria and mold, extending the paste's shelf life to about a week.
Freezing (Optional): For longer storage, consider freezing the paste. Spoon the paste into ice cube trays and freeze until solid. Once frozen, transfer the cubes to a freezer bag or container. This allows you to use only the amount you need for each batch of rasam. Frozen rasam paste can last for 2-3 months.
Thawing: If frozen, thaw the required amount of rasam paste in the refrigerator overnight or microwave it on a low setting until softened. Use immediately after thawing.
Add a thin layer of oil on top of the rasam paste before refrigerating. This creates a barrier that prevents oxidation and helps preserve the flavor and color of the paste.