Yes, chana dal can be roasted and powdered for long-term storage. Roasting reduces moisture content, which helps prevent spoilage and extends its shelf life.
Roasting chana dal before grinding it into flour (besan) is a common practice to enhance its flavor, aroma, and shelf life. The roasting process achieves several key objectives:
Reduces Moisture: Roasting significantly lowers the moisture content of the dal. Moisture is a primary factor that contributes to the growth of mold and bacteria, leading to spoilage. By reducing moisture, you create an environment less conducive to microbial growth.
Enhances Flavor: The roasting process brings out the nutty and earthy flavors of the chana dal, making the resulting flour more flavorful.
Improves Texture: Roasting can also slightly alter the texture of the dal, making it easier to grind into a fine powder.
To roast chana dal properly:
Preparation: Spread the chana dal in a single layer on a baking sheet or in a heavy-bottomed pan.
Roasting: Roast in a preheated oven at a low temperature (around 250°F or 120°C) for about 30-45 minutes, or roast in a pan on the stovetop over medium-low heat, stirring frequently. The dal should turn a light golden brown and have a roasted aroma.
Cooling: Allow the roasted dal to cool completely before grinding it into a powder.
Grinding: Use a high-powered blender or spice grinder to grind the cooled dal into a fine powder.
Storage: Store the chana dal flour in an airtight container in a cool, dark, and dry place. Properly stored, it can last for several months.
To ensure even roasting, stir the chana dal frequently during the roasting process, whether you're using an oven or a stovetop. This prevents some grains from burning while others remain under-roasted, leading to inconsistent flavor and texture in the final flour.