In the advertisement, the product spokesperson watched the picture of Chubang soy sauce threshing floor by helicopter, and said that "after 180 days of drying, it will be dried here, with pictures and truth". The advertisement does not directly say how good the product is, but only emphasizes "long drying time" and "pictures with truth" to further explain to consumers that what I said is true. The longer the soy sauce is allowed to air, the better it is. I'm afraid not every consumer can tell the reason why soy sauce has been dried for a long time, but this "picture and truth" emphasizes the advertiser's "product in place", which is enough.