In the baking of bread and other products, multiple phenomena occur, encompassing chemical, physical, and biological aspects, which it is good to be aware of and understand. Let’s analyse what happens in baking. This topic is complex, and I believe addressing it in a single entry would be unfeasible (at least if we maintain the average length of entries). Therefore, we will cover the basic knowledge in two entries. It may be necessary to address specific aspects in subsequent entries….
Fermentation is the process by which certain microorganisms modify a substrate, primarily in a positive manner. In the case of bread, we often refer to fermentation when discussing the processes by which yeast produces CO2 and alcohol from sugars. However, fermentation also includes the action of lactic and acetic bacteria when creating sourdough. Previous blog entries have covered yeast and sourdough. Today, we will focus on the changes that the dough undergoes and the factors to control in these processes….
Yeast is the microorganism that, when incorporated into dough, generates carbon dioxide (CO2), allowing the dough to increase in volume. To achieve this, yeast requires sugars, which it transforms into CO2 and ethanol. While ethanol evaporates during baking, CO2 remains trapped in the dough, giving it a spongy texture, provided that the dough has the ability to retain this gas, which, in most cases, depends on the gluten network. The yeast used in baking belongs to the Saccharomyces cerevisiae genus….
Rheofermentometer We have previously discussed in the blog about quality control equipment that simulates the kneading process or dough handling. Today, we will talk about a device that simulates the fermentation process. I believe it is very useful for certain aspects and practically has no alternative. While it is true that the Brabender company has marketed equipment for studying fermentation, called the maturograph, this equipment is practically obsolete. On the contrary, the reofermentometer, developed by the Chopin company, has become…