New Zealand cod glue, once called New Zealand cod sole glue, is not sole fish, but unscrupulous merchants want to use the word "sole" to highlight the goodness of sole glue. The scientific name is feather ferret, which belongs to ferret family. Many people call it cod, but New Zealand gum does not belong to the family Cod.
In fact, New Zealand cod glue can't be considered as the worst glue, and the quality of fish glue depends on its age. If gelatin is old enough, the effect will be great. And if the fish glue is relatively new, then even the red mouth is not good unless it is put for a few years. Therefore, the fish glue is not bad, or it depends on the age of the goods. The older the gelatin, the better the efficacy value.
Price is also a concern of many people. In fact, the price is expensive and cheap. But I don't think New Zealand cod glue is very cost-effective. A lot of hype is for purchasing, and the price is very high, which is outrageous. The value of this cod glue is not worth such a high price. There are hundreds to thousands of dollars, depending on the size and the old and new.