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>A bread is a solid stable foam created by heating a dough made primarily of milled plant matter and water. The most common Indian bread, the roti, is not a fo
by moultano 10y ago
>A bread is a solid stable foam created by heating a dough made primarily of milled plant matter and water.
The most common Indian bread, the roti, is not a foam. It's a very flat bread made of wheat flour and water with no internal structure.
- tptacek 10y agoI'm pretty sure it is; it's just a foam of very small bubbles. It's the little pockets of air in bread (usually made by escaping steam, from the water in the dough) that make it tender and palatable. The most obvious foam structure we think about with bread are the big bubbles inside a sourdough or tuscan loaf. But the foam that, say, Harold McGee is thinking about when he describes bread as foam is occurring at a smaller scale. A communion wafer, for instance, is indisputably bread --- extremely thin, with no discernible internal structure --- but it's also basically a very thin slice of styrofoam.
- oasisbob 10y agoIf you define a foam as "a substance that is formed by trapping pockets of gas in a liquid or solid", a roti is absolutely a foam. Or, a foam subunit. (When you make roti, it usually expands like a balloon during the cooking process.)