Steaming is one of the most ancient and healthiest cooking technique which could be traced back to some 10,000 years. This most probably is one of those methods that Human civilisation tried experimenting with. Steam pits, Stoneware steamers were the very old steaming utensils that were devised to cook food while retaining the taste and most importantly the nutrients.
But very unfortunately we donot use this very healthy technique much in our daily cooking. Apart from steaming some Hilsa here or a batch of Idli there, This still is not part of mainstream Bengali or North Indian cooking. And all thanks to Tupperware that this trend is going to change for good in my Kitchen.