Basic knowledge of Coffee Preservation of roasted coffee beans
Non-airtight packaging: This is the most economical one. Usually adopted by small local bakeries because they guarantee a quick supply. Coffee beans can be consumed in time. Coffee beans in packaging can only be stored for a short time. Airtight packaging: suitable for bar, household or indirect supply (supermarket, etc.). Pouches and cans will do. After filling the coffee, vacuum and seal. Due to the formation of carbon dioxide in the process of cultivation, this packaging can only be packaged after the coffee has been allowed to stand for a period of time to degas it, so there is a storage interval of several days, and coffee beans can stand longer than coffee powder. Low cost since no isolation from air is required during storage. Coffee in this package should be used up within 2 weeks. Pressurized packaging: This is the most expensive way, but can preserve coffee for up to two years. The size depends on whether the user is a family or a bar. After a few minutes of brewing, the coffee can be vacuum-packed. After adding some inert gas, the proper pressure is maintained in the package. Coffee beans are stored under pressure, leaving the aroma on the fat, thereby improving the flavor of the beverage. One-way valve packaging: small bags and cans can be used. After cultivation, coffee is put into a special vacuum container with a one-way valve, this valve allows gas to go out but not in, there is no need for a separate storage stage, but due to the degassing process, the aroma will be a little lost, it avoids the formation of spoilage flavor, but can not prevent the loss of aroma, because coffee after roasting will emit more than three times its own volume of carbon dioxide, if the coffee beans are constantly in contact with the air will accelerate fat oxidation and make coffee delicious loss. At present, the most effective method is to fill the packaging with a special patented one-way exhaust valve, which can release the carbon dioxide produced by coffee from the inside and prevent the intrusion of external air.
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Love bitter coffee, boutique coffee, basic knowledge
I have always liked coffee, especially bitter coffee. Recently, I have always heard others say that black coffee can lose weight, but many friends have a vague definition of this black coffee. Black coffee is unembellished coffee, black coffee brings the original feeling of tasting coffee. Black coffee combines the characteristics of sweet and bitter coffee. It is primitive and rough, deep and bitter.
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The key to the success of a barista
For the various schools of thought in circulation in the market, many people will disagree, thinking that what I make is authentic coffee, or very confused, do not know which statement is right, what should we do? First of all, since there are so many theories in the market, there should be some truth, so we should jump out and not be arrogant or work behind closed doors and stay in place.
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