The benefits of using fish glue are:
Cost saving: After the application of fish glue, beer's post-fermentation time is shortened, wine damage is reduced, and the yeast content is greatly reduced, so that the filtration capacity of the filter is enhanced and the amount of diatomite is reduced.
Reduced wine loss: due to the formation of tight yeast sediments and a clear demarcation between sake and yeast, the collection of sake will be 1% to 2% more than usual; the shortening of the wine storage time will increase the efficiency of the fermentation tank; The shortening of time can reduce the cost of energy consumption of cryopreservation; the enhancement of the filter processing capacity means the improvement of filtration efficiency (reducing the preparation and interruption time-consuming); reducing the use frequency of CIP, can reduce the use of chemical lotion; Clarified beer can save the amount of diatomaceous earth (usually more than 50%); reducing the amount of diatomaceous earth can save the cost of lotion; when the new or expansion of the factory, such as the use of fish glue in the production plan, can save hundreds Ten thousand U.S. dollars. Only 30% or less of the original fermentation or post-fermentation can save a lot of equipment capital investment.
Improve quality: can shorten the (old) yeast and beer contact time, reduce the disintegration of the yeast itself; better filtration conditions can make the beer more clear, and enhance the stability of the colloid; long uninterrupted filtration to the finished beer and air The chance of contact and oxidation is reduced; in some cases, fish gelatin can also stabilize the foam; reduce the consumption of CIP lotion, saving and environmental protection.
It should be noted that before using fish gelatin, the appropriate amount should be determined. Different types of beer, different raw materials and different kinds of yeast will make different amounts of fish gelatin. At least once a year, the determination of the appropriate amount is performed. When the main raw material or processing method is changed, the amount of fish glue must be determined again.
Application of fish glue clarifier
Fish gelatin is a kind of collagen product prepared and purified from fish gills of tropical and subtropical fish. The triple helix structure of collagen is the active part of fish gelatin. The fish glue solution can be added during the pre-beer fermentor, or added after the yeast is removed in the one-pot method. In beer's pH environment, positively charged fish glue can attract negatively charged yeast, which can quickly form larger particles that settle to the bottom of the container. Fish gelatin clarifier can also settle other small particles that can cause turbidity or filtration problems. In beer, collagen is insoluble, and excess fish gelatin sinks into the bottom without being brought into the subsequent processing.