Craft beer equipment: raw material crushing system

Craft beer equipment generally refers to the equipment used by beer lovers to brew their own beer. Compared with the equipment of large breweries, the equipment is simple and easy to operate, the brewing process is flexible, and the investment is small. At present, the home-brewed beer equipment on the market can basically be divided into home-brewed beer equipment, home-brewed beer equipment for hotels and bars, small beer equipment, and teaching experimental equipment. Home-brewed beer equipment is mainly suitable for hotels, bars, barbecue sites, small and medium-sized breweries, teaching experiments and other places.

Home-brewed beer equipment is mainly composed of eight systems: crushing system, saccharification system, fermentation system, refrigeration system, CIP cleaning system, control system, filling system and wine sales system.

Beer equipment manufacturers will gradually introduce these eight main systems to everyone. Today, we will mainly introduce the crushing system.

The beer equipment manufacturer will gradually introduce these eight main systems to everyone. Today, we will mainly introduce the crushing system.

1. Classification and configuration of raw material crushing system

The function of the crushing system is to crush the beer raw material malt and auxiliary raw materials according to the process requirements. The crushing methods include malt crushing and auxiliary material crushing, which are divided into dry crushing and wet crushing.

1. The equipment of the dry crushing system includes: material selection machine, vacuum cleaner, elevator, crusher, silo, powder silo, etc.:

(1) Selection machine: use a vibrating screen to remove impurities and a magnet to remove iron;

(2) Vacuum cleaner: use a pneumatic vacuum cleaner to absorb and discharge dust, and recover usable powder; 1. Introduction to brewing beer equipment

Quality, use a magnet to remove iron;

(3) Elevator: use a bucket or vacuum negative pressure principle to increase the material supply to the crusher.

(4) Crusher: It is divided into various types of rollers, three rollers, four rollers, five rollers, six rollers, etc., which are used to crush raw materials and auxiliary materials;

(5) Silo: The malt and auxiliary materials to be crushed are temporarily stored in the silo, waiting for the crusher to crush.

(6) Powder silo: The crushed malt powder or auxiliary powder is temporarily stored in the corresponding powder silo as a temporary storage box for beer saccharification raw materials.

2. The wet crushing system equipment includes: wheat immersion tank, water storage tank, crusher, pulp tank, wheat slurry pump, etc.:

(1) Soaking tank: pre-soak malt and other raw materials with warm water to provide suitable materials for the crusher;

(2) Water storage tank: reserve warm water for pre-soaking wheat, which is used for pre-soaking wheat, crushing, and pulping;

(3) Crusher: soak malt and other materials, adjust the crushing fineness according to the process requirements, complete the crushing work, and avoid secondary dust;

(4) Pulp mixing tank: mix the crushed materials according to the process requirements, and add water according to the production requirements;

(5) Malt slurry pump: pump the slurry in the above mixing tank into the saccharification system as planned.

Due to the small output, the commonly used small-scale brewing beer equipment adopts a dry crushing system to facilitate operation and reduce investment. Systems with a daily output of less than 1000L will also reduce the preparation of equipment. Only supporting supporting roller crushers below 300KG/H. That's it. If it is a small brewery of 2000L-3000L, you can add elevators, silos and powder silos to meet the basic requirements.

2. Issues that should be paid attention to during malt crushing:

Malt is the main raw material in the beer brewing process. The degree of malt crushing will also seriously affect the taste of beer and the malt saccharification rate. Therefore, the crushing of malt is particularly important, so what issues should be paid attention to during the processing. What is the process of malt crushing?

Malt crushing is a purely physical process. The crushing of raw materials can increase the contact area between the content and water, so that starch particles can be quickly absorbed, softened, swelled and even dissolved. The contact area of ​​the content with medium water and biocatalytic enzymes increases, thereby accelerating the dissolution and decomposition of the material content, accelerating the leaching of soluble substances, and promoting the dissolution of insoluble substances.

The malt commonly used for beer brewing is barley malt (or wheat malt). For these malts, the crushing requirements of malt are: the shell is broken but not broken, but the endosperm must be properly refined, and attention should be paid to improving the uniformity of coarse and fine particles.

The hull of malt is used as a natural filter layer when filtering wort. If the crushing is too fine, the filter layer is too tight, which will increase the filtration resistance and make the filtration difficult. In addition, harmful substances in the shell, such as polyphenols and bitter substances, are easily dissolved, which will deepen the color of the beer and make the bitterness rough.

In theory, the malt endosperm is crushed as fine as possible, especially for malts with low solubility, the mechanical crushing method can maximize the dissolution of the content in the saccharification process and improve the saccharification rate. But too small will increase power consumption and increase operating costs. However, the auxiliary materials should be crushed as much as possible to increase the yield of the extract.