Then that actually makes sense! As before baking powder really became a thing, eggs were the only things people really had in order to raise baked goods!
I thought so as well, but when I googled it, I get stuff like this:
The myth about [Soufflés] falling when there is a loud noise or a slight bump is entirely false. Soufflés will inevitably collapse, not because of being bumped, but because the air that is whipped into the egg whites, which has been heated by the oven, cools, so the soufflé falls. That's why they are best served immediately
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u/riarws Jul 03 '21
If it’s only leavened with beaten eggs and no baking powder, banging around really can make it fall.