New Delhi, Sept. 5 -- Sometimes when we buy wheat or other food grains from the market they all seem okay from outside, but some may be infested with insects. Please tell us how we can be sure that the grains we have bought are perfectly fine for consumption.

Yes this is a real problem, as we might get fooled by appearances. Take a filter paper impregnated with Ninhydrin reagent (1 per cent in alcohol). Put some grains on it and fold the filter paper and crush the grains with a hammer. Spots of bluish purple colour indicate presence of hidden insect infestation.

Please tell us a few ways we can use "Hummus" in our recipes.

"Hummus" is traditionally made with chick peas. Chickpeas are known as a rich source of protein and fibre. This ma...