Craft beer equipmentHops are natural preservatives, and part of their early use was to preserve beer. After the beer is fermented, the hops are directly added to the wooden barrel during the transportation to keep the beer fresh, thus giving birth to a special type of beer-India Pale Ale. In the 18th century, British brewers began to ship strong Ale beer to India. They added a large amount of hops to the beer barrels to keep the beer from spoiling after months of voyage. So at the end of the voyage, the beer was already Obtained a strong hop aroma and flavor, which was a thirst-quenching drink for the British who were in the tropics at that time.

Beer without hops is not called beer. Hops can balance the taste and are also the characteristics of many types of beer. The bitterness contained in it can balance the sweetness of maltose and at the same time make the rest of the beer fresh and refreshing. The main bitter component of hops is alpha acid resin, which is insoluble in water. It can only be dissolved in water by heating and boiling the alpha acid resin that becomes isomerized. The longer the heating and boiling time, the percentage of isomerization ( The greater the degree), the more bitter taste is obtained. However, the hop essential oil, which provides the characteristic flavor and aroma of beer, has volatility, but it will lose a lot during the long boiling process.

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