There are over 400 types of soy sauce products labeled as "zero additives." What does "zero additives" mean, exactly?

Soy sauce is the largest category of condiments in our country. With the increasing attention to healthy eating, soy sauce has also shown a trend of diversified development based on the trends of "health", "individuality", "natural", etc. It is understood that a survey conducted by the Shandong Food and Drug Inspection Research Institute shows that there are more than 400 soy sauce products on the market that are labeled with "zero additives". These labels mainly include "zero added preservatives", "zero added sweeteners", "zero added colorants", "zero added flavor enhancers", and "no use of any additives". The reporter noticed that most of these soy sauce products prominently display the words "zero added" in large font on the label, while the specific content of "zero added" in the label is in a small font and not easily found. Experts have pointed out that this labeling method can easily mislead consumers, making them mistakenly believe that "zero added" means no addition of any food additives. Consumers need to carefully discern and understand the actual ingredients of the product when making a purchase.