Differences in Brewing Processes
My country's brewed soy sauce products can be mainly divided into two categories based on their unique production processes.
Low-Salt Solid-State Brewed Soy Sauce
This type of soy sauce is characterized by a short production cycle, making it suitable for industrial production and offering significant economic benefits.
High-Salt Liquid-State Brewed Soy Sauce
Compared to low-salt solid-state brewing, high-salt liquid-state brewing soy sauce has a significantly longer production cycle, but its unique fermentation process gives it a superior flavor and richer nutrients, better aligning with current consumer demands for a healthy lifestyle. It's worth noting that high-quality organic soy sauce often uses this brewing method.
Raw Material Requirements
According to organic regulations, organic soy sauce must use raw materials certified organic in China, including organic wheat and organic soybeans. This significantly differs from the production process of ordinary soy sauce.
In the production of ordinary soy sauce, soybean meal is a common raw material, derived from soybean oil production byproducts. Organic soy sauce, however, uses soybeans that have been physically cold-pressed into cakes and used directly as fermentation raw materials. This gives organic soy sauce its unique aroma and umami flavor.
Fermentation Length
Observing fermentation time: Organic soy sauce undergoes a longer fermentation process.
Generally, the fermentation time for regular soy sauce is shorter than that for organic soy sauce. This is mainly because regular soy sauce can compensate for insufficient umami, aroma, and flavor through post-fermentation synthesis, while organic soy sauce must undergo actual fermentation to achieve these flavors. In terms of taste, the umami of organic soy sauce is not as intense as that of regular soy sauce, but rather more mellow.
Furthermore, the Key Laboratory of Food Nutrition and Safety of the Ministry of Education at Tianjin University of Science and Technology conducted a comparative experiment on the isoflavone content and fatty acid composition of two groups of soybeans fermented over a 6-month period, using organic and regular soybeans as the main raw materials and employing a high-salt, dilute-state brewing process. The results showed that the organic group had higher levels of isoflavones and unsaturated fatty acids than the regular group, further demonstrating the significant advantages of organic soybean fermented soy sauce in terms of health-promoting components.
Differences in Taste and Flavor
The unique feature of organic soy sauce lies in its zero-additive ingredients. Unlike regular soy sauce, organic soy sauce is made from soybeans that are physically cold-pressed into cakes and then directly fermented without the addition of any chemically synthesized substances. This allows organic soy sauce to retain its original rich, mellow aroma and delicious flavor, being completely naturally produced and free of any artificially synthesized umami components. While regular soy sauce often contains preservatives such as potassium sorbate and sodium benzoate to extend its shelf life, as well as flavor enhancers such as hydrolyzed protein, glutamic acid, and nucleotides to improve its taste, these additives can ruin the pure flavor of the soy sauce and may even produce off-flavors during cooking. In contrast, every drop of organic soy sauce exudes a natural aroma, adding a pure and wonderful touch to the dining table.
