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 clip Bread clip A bread clip is a device used to hold plastic bags closed, such as the ones in which sliced bread is commonly packaged. They are also commonly called bread tags, bread tabs, bread ties, bread climps or bread-bag clips. By sealing a bag more securely than tying or folding over its open end, the clip or tie may preserve its contents longer. In some cases, the color of the tag indicates the day on which it was baked, although there is no universal standard for the color code. Most designs of bread clip consist of a single plastic