The duration for which walnuts are submerged in water is a key variable in their preparation. This soaking period, typically measured in hours, affects the nut’s texture and digestibility. For instance, a shorter submersion might only soften the outer layer, while a prolonged soak can alter the entire nut’s composition.
Proper hydration of walnuts offers several potential advantages. Soaking is believed to reduce the levels of phytic acid, a compound that can inhibit the absorption of certain minerals. Furthermore, the process may improve the nut’s texture, making it more palatable, and can initiate enzymatic activity, potentially enhancing its nutritional profile. Historically, soaking nuts has been practiced across various cultures as a method for improving their digestibility and flavor.