Final answer:
Sifting is a process used in baking to add air, remove lumps, and filter out impurities from dry ingredients, improving the texture and consistency of the final product. In contrast, HEPA filters are used to purify the air of particles but are not typically used in the direct process of baking. While unrelated to sifting, the actions of yeast are an essential aspect of bread making, contributing to the bread's light and fluffy texture.
Step-by-step explanation:
The process that adds air, removes lumps, and filters out impurities in baking is known as sifting. Sifting is crucial in baking to ensure a uniform texture and to incorporate air into dry ingredients like flour.
Not only does it break up lumps, but it also helps to mix ingredients more evenly. Filtration is a separate process that can remove particulate matter through mediums like HEPA filters, which are used in various settings to clean the air of dust, bacteria, and viruses.
When baking bread, for instance, yeast plays a key role. It ferments the sugar, producing carbon dioxide gas that gets trapped in the dough, resulting in the small holes and light texture found in bread. Moreover, the dough expands due to the carbon dioxide gas when exposed to high temperatures.
Regular maintenance such as changing filters in air systems also contributes to better air quality and, subsequently, a cleaner baking environment.