To avoid bitterness in stored ragi flour, store it in an airtight container in a cool, dark, and dry place, and consider roasting the ragi before milling it into flour.
Detailed Explanation:
Ragi flour, also known as finger millet flour, can develop a bitter taste over time due to the oxidation of its natural oils and the activity of enzymes. Proper storage and preparation techniques are crucial to prevent this. Here's a breakdown:
- Roasting the Ragi: Before milling the ragi into flour, lightly roast the whole grains. This process deactivates enzymes that contribute to bitterness and also enhances the flavor of the flour. Roast the ragi grains in a dry pan over low heat until they release a nutty aroma and slightly change color. Be careful not to burn them.
- Cooling Before Milling: Allow the roasted ragi grains to cool completely before grinding them into flour. Grinding hot grains can create moisture and accelerate spoilage.
- Airtight Storage: Store the ragi flour in an airtight container. This prevents exposure to air and moisture, which are the primary culprits behind oxidation and the development of bitterness.
- Cool, Dark, and Dry Place: Keep the airtight container in a cool, dark, and dry place, such as a pantry or cupboard away from direct sunlight and heat sources. Avoid storing it near the stove or in areas with high humidity.
- Refrigeration or Freezing (Optional): For extended storage, especially in warmer climates, consider refrigerating or freezing the ragi flour. This will significantly slow down the oxidation process and preserve its freshness. Ensure the container is airtight to prevent freezer burn or moisture absorption.
- Use Within a Reasonable Timeframe: Even with proper storage, ragi flour is best used within 2-3 months for optimal flavor and quality. Check for any signs of spoilage, such as a rancid smell or bitter taste, before using.
Pro Tip:
If you're buying ragi flour instead of making it yourself, purchase it from a reputable source that ensures proper processing and packaging. Check the manufacturing and expiry dates to ensure freshness.