Malt roasting technology for craft beer

Abstract

The invention provides a malt roasting technology for craft beer and belongs to the field of craft beer material processing. The roasting technology comprises the step of malt roasting. During the malt roasting process, hot air is used as a heat transfer medium for heat exchange with the material. The heat exchange mode is as follows: a sieve plate is arranged at a roasting rotary drum, and then hot air enters the roasting rotary drum through the sieve plate and passes through a material layer to directly heat the material so as to achieve the purpose of heating and overturning the material and maintaining relative humidity of the material. In allusion to the situation that production requirements of products except black malt cannot be met by a combustion furnace direct-heating mode, a sealed hot-air chamber is arranged at the outer side of the roasting rotary drum so as to indirectly heat the material through hot air. The technology of the invention is especially suitable for the situation that the combustion furnace direct-heating mode cannot meet requirements of special technologies, and is also convenient for temperature control.

Description

technical field [0001] The invention relates to the field of craft beer raw material processing, in particular to a malt roasting process for craft beer. Background technique [0002] Beer is a low-alcohol fermented wine containing carbon dioxide, which is made from grains and water as the main raw materials, added with hops (or hop products) and fermented by yeast. According to the raw materials and fermentation process, beer can usually be divided into craft beer and industrial beer. Common Budweiser, Heineken, Tsingtao and Snowflake are all industrial beers. [0003] In terms of raw materials, industrial beer uses rice, corn, starch, etc. instead of malt to control costs. The cost is low and there are many auxiliary materials. The brewed beer wort concentration is very low and the taste is light. [0004] Craft beer is usually brewed using only malt, hops, yeast and water without adding any artificial additives. Compared with industrial beer, with more malt content and ...

AI Technical Summary

Problems solved by technology

When malt is roasted, it is mostly manual operation. CN 2307792 discloses a simple equipment for malt roasting furnace. When it is used, there are still the following problems: first, when the material is fed, the material guide cover needs to be placed first. Turn the opening upwards and connect the feeding funnel. When discharging, you need to open the discharge port cover, turn the material guide cover to the opening downward, start the motor to make the material flow out through the material guide cover, and secondly, the inner screw of the roasting drum The rotation direction of the material guide plate faces one direction, which cannot achieve uniform mixing of materials, nor can it ensure complete feeding and discharging

Third, the direct heating method of the combustion furnace cannot meet the needs of the production process of products other than black malt

Fourth, the method of heating the outer wall of the roasting drum to transfer heat to the material cannot achieve the purpose of uniform heating of the material

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