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Selection of fermenters in craft beer equipment

selection of fermenters in craft beer equipment

Beer is fermented in traditional open fermentation tanks, usually called pre-fermentation. Post-fermentation takes place in a closed fermenter, called post-fermentation. Due to the miniaturization of the equipment and the limitation of the floor space, the one-pot method is adopted. Both the pre-fermentation and post-fermentation processes are carried out in this tank, which saves costs and reduces the floor space. The new process is a one-pot fermentation tank with a variety of styles, different shapes, and different configurations.
Selection Of Fermenters In Craft Beer Equipment

front fermentation tank

It turned out that the pre-fermentation was carried out in a pond, and the external materials of the pond were wood, steel plate, and concrete dug underground. There are asphalt and tiles all around. The cooling coil is used for cooling, and the cold water is passed through to take away the heat generated by the fermentation. The air in the room where the fermentation tank is located should be purified to reduce the probability of bacterial infection.
  • Some customers in craft beer equipment still want to use this fermentation method. But, this kind of container is backward, and now it is made of stainless steel plate in a fermentation tank. There are legs off the ground, put it in a ventilated and suitable temperature room, add cooled wort, send pure-bred yeast, or receive wild yeast from nature to ferment. The Belgian Lambic Sour Beer is pre-fermented in this way, and the local characteristics and the environment are not easy to replicate.
  • Also to the cuboid fermentation tank, there is also a cylindrical front fermentation tank. It is a double-layer atmospheric pressure container with polyurethane insulation, and there is a Maitreya plate cooling jacket outside the inner tank. Ice water circulation can be used to take away the heat generated by fermentation, and there is a stainless steel flat cover with power-assisted lifting on the top, which can ensure the entry of miscellaneous bacteria. It can also be lifted , which is convenient for cleaning the foam cover produced by fermentation and the dead yeast, hop lees, and wort hot coagulum left by the pouring tank. The lower flat bottom has a slight slope to ease the removal of the last drop, and the temperature can be controlled and very precise, which is beneficial to the realization of the fermentation process.
post fermentation tank

front fermentation tank

That is to say, the fermentation tank is generally made of SUS304 stainless steel, which is welded by argon arc. Some individual customers want 316L material, which increases the cost and the result is the same. From a practical point of view, it is only necessary to use 304 stainless steel for the part in contact with the material, as long as the outrigger can be welded with the inner tank and the strength can be supported. Color steel plate, aluminum titanium plate, or even carbon steel spray paint can be used for outsourcing. The insulation material does not have to be polyurethane. It turns out that the insulation material for the fermentation tanks of large breweries is perlite.
  • The purpose of saying this is to tell everyone that what is suitable is good, and as long as the result we want remains unchanged, everything else is possible. Don’t have enough budget and want all stainless steel? It is a winery that does not pay attention to the display effect, and the wine production is not discounted. It is also good to use an aluminum-titanium plate for outsourcing.
  • Due to the need for pressure, the upper part of the structure design is a head or a cone, and the lower cone is designed to ease the discharge of yeast, which is 60°, and sometimes 72°, 75°, and 90° to reduce the height. The harder it is to sort.
  • Also to manhole doors and butterfly valves, the accessories on the fermentation tank include positive and negative pressure safety valves, mechanical pressure regulating valves, sampling valves, rotary wine valves, pressure gauges, bimetal thermometers, and titanium rods for carbon dioxide charging.
  • The positive and negative pressure safety valve is the last line of defense for the safety of the fermentation tank, and both positive and negative pressure is turned on. In particular, even if the negative pressure is very low, the tank may be flattened. This valve is installed . It is also integrated with the mechanical pressure regulating valve, installed on the CIP cleaning pipe, and also has the function of positive and negative pressure protection. The mechanical pressure regulating valve is used to keep the pressure in the tank constant. The high-end point is the water-sealed mechanical pressure regulating valve. There is a transparent water-sealed cup, and you can see the bubbles emerging, which is convenient for observing the situation.
  • The best sampling valve should be the one with a screw cap on the top. Although it is more expensive, it has good sealing performance and is not easy to be damaged, and there is also an interface that can be installed with a screw defoamer. The side handle is not sealed, and the pad of the front handle is damaged, although the problem is not big.
  • Pressure gauges and bimetallic thermometers are generally no problem. It is best to choose shock-proof pressure gauges; bimetallic thermometers are irrelevant but are only used for general inspection of the temperature. The temperature control in the tank is achieved by more accurate temperature sensors and temperature controllers. Yes, with a few decorative properties.
  • The application of the rotary wine valve has been introduced to China for more than ten years. Now technology is very mature. With this valve, the yeast layer can be avoided. Although it is possible to get more beer, the price is not high but it is very practical, and the extra wine alone is enough for its value.
  • Besides to the limited height of the manhole door, the upper manhole should be selected as much as possible, because it is in the upper part and does not come into contact with the fermentation broth, so the pollution may be less, and there will be no condensation in summer. The side manhole occupies all these two aspects, but it can solve the problem that the room height is limited and the manhole door cannot be opened.
beer fermentation tank

Get a turnkey solution for craft breweries

The above-mentioned engineers of Micet Craft gave you a comprehensive introduction to the selection of craft beer fermenters and accessories. Contact us if you are planning and ready to build a brewery. The professional engineers of Micet craft will make the perfect beer equipment plan for you and help you realize your dream. Micet craft looks forward to cooperating with you!
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If you plan to open or expand the brewery, you can contact Micet Craft directly. Our engineers will design and manufacture brewery equipment according to your brewing process. Of course, we will also provide you with a complete turnkey solution. Also, if you plan to expand the brewery, we will provide you with customized solutions.

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