Turmeric should be dried in slices rather than grated before storage. Slicing allows for better airflow and prevents clumping, leading to more effective drying and reduced risk of mold.
When preparing turmeric for long-term storage, the drying process is crucial to prevent spoilage. Slicing the turmeric rhizomes into thin pieces increases the surface area exposed to air, facilitating faster and more even drying. This method minimizes the chance of moisture being trapped within the turmeric, which can lead to mold growth and degradation of the spice's quality. Grating turmeric, on the other hand, creates a mass of small particles that tend to clump together. This clumping inhibits airflow, making it difficult for the turmeric to dry thoroughly and increasing the likelihood of spoilage. Furthermore, grated turmeric is more susceptible to losing its essential oils and flavor compounds during the drying process compared to sliced turmeric. Therefore, slicing is the preferred method for drying turmeric before storage to ensure optimal preservation of its flavor, color, and medicinal properties.
Before drying, blanch the turmeric slices in boiling water for about 10 minutes. This helps to reduce drying time, preserve the color, and kill any surface bacteria that could cause spoilage.