For years, the mango orchards of Munjer Alam in Chapainawabganj yielded far more fruit than he could ever hope to sell. As much as a quarter to a third of his mangoes would rot away before reaching ...

Freeze-drying, also known as lyophilization, is a form of dehydration. Food is first frozen, then dried under pressure to remove its water content. It is widely believed that freeze-drying is the best ...