1. Select your beans thoroughly to remove every dirt or debris like stones, twigs etc
2. Put under the sun to dry completely. This also expels any weevils that might already be in the beans. Dry for a day or two.
3. Put your beans in an airtight container. You can use a gallon for this purpose. Ensure your container is properly washed with soap and hot water and then allowed to dry completely.
4. Add some cayenne pepper. About 10 beans to 1 pepper. Use that idea to calculate the quantity of pepper required for your beans.
The pepper suffocates the weevils and their eggs.
5. Keep your beans container in a cool dry place like in the cupboard or kitchen rack.
This keeps your beans safe for months.