Bread unpredictable since the steam is not produced until the bread is baked. Steam leavening happens regardless of the raising agents (baking soda, yeast, baking powder, sour dough, beaten egg white) included in the mix. The leavening agent either contains air bubbles or generates carbon dioxide. The heat vaporises the water from the inner surface of the bubbles within the dough. The steam expands and makes the bread rise. This is the main factor in the rising of bread once it has been put in the oven. CO generation, on its own, is too small to account for the rise. Heat
Bread and salt (embroidered ritual cloth). A salt holder or a salt cellar is placed on top of the bread loaf or secured in a hole on the top of the loaf. On official occasions, the "bread and salt" is usually presented by young women dressed in national costumes (e.g., sarafan and kokoshnik). The tradition gave rise to the Russian word that expresses a person's hospitality: ""khlebosolny"" (literally: "bready-salty"). In general, the word "bread" is associated in Russian culture with hospitality, bread being the most respected food, whereas salt is associated with long friendship, as expressed in a Russian saying "to eat a