For thousands of years, servants and slaves--or in lesser households, wives and daughters--were stuck with the same pestles and sieves, with few innovations. This technological stagnation reflects a harsh truth. There was very little interest in attempting to save labor when the labor in question was not your own.

The danger of growing up surrounded by these endless sweet and salty industrial concoctions is not that we are innately incapable of resisting them, but that the more frequently we eat them, especially in childhood, the more they train us to expect all food to taste this way.

When eating becomes a matter of life or death, and each new bite is a celebration, you may discover that none of the other stuff was quite as important as sitting and breaking bread together.