Coffee Knowledge
Latest articles, industry insights and brewing guides
Pick beans baking | pick beans before baking or baking before picking beans?
Professional barista communication Please pay attention to the coffee workshop (Wechat official account cafe_style) pick raw beans must be picked before roasting, so that the quality will be good. Is it correct? I think it's a matter of opinion. But buoyancy coffee is raw beans first pick beans and then roast and then pick ripe beans again. The reason for picking beans after baking is that even if the raw beans look uniform, they have five colors after baking.
Preservation of raw beans: how to preserve raw beans best
Professional barista communication Please pay attention to the coffee workshop (Wechat official account cafe_style) raw beans put in the freezer, the water inside will freeze to form crystalline tissue moisture can not be retained, so a lot of flavor will run away the best way to preserve: roast while fresh! Second best: after picking raw beans vacuum and then refrigerate the third best: raw beans vacuum directly and then refrigerate the fourth best: raw beans are true
Roasting Reaction Change--Coffee Roasting Caramelization
Professional barista communication, please pay attention to coffee workshop (Weixin Official Accounts cafe_style) coffee green beans do not contain the special aroma of coffee, so they are not eaten directly, but must be roasted before producing a large amount of volatile aroma substances. After roasting, the main volatile aroma components of coffee beans were analyzed and confirmed to have at least 660 kinds, which was the most important volatile aroma component in all foods and beverages.
Birthplace of Coffee | know the raw beans of Ethiopia
For professional baristas, please follow the coffee workshop (Wechat official account cafe_style) Ethiopia is the birthplace of Arabica coffee. According to research, wild Arabica grows in the forests of the Kaffa region of Ethiopia. Ethiopians have been drinking coffee longer than anyone else. Coffee is an essential drink in the daily life of the people, and about 50% of the output is mentioned.
![[picking beans] picking beans is a very important move.](https://world.gafei.com/uploads/allimg/170925/3-1F925102424434-lp.jpg)
[picking beans] picking beans is a very important move.
Communication of professional baristas Please pay attention to the delicacy of a cup of coffee in the coffee workshop (Wechat official account cafe_style). Once mixed with defective beans, it will be greatly reduced, no matter how fresh and expensive the beans are, it will make people uncomfortable and destroy the flavor of the whole pot. On the other hand, most of the coffee that people drink will feel palpitations and discomfort, usually defective beans (such as mold infection, worm-eaten beans)
Coffee roasting experiment: taxiing experiment of non-embroidered steel inner pot of local cannon and cast iron inner pot of business machine
For the exchange of professional baristas, please pay attention to the coffee workshop (Wechat official account cafe_style) [the storage temperature of the unembroidered steel inner pot of the local cannon is different from that of the cast iron inner pot of the business machine] so the temperature immediately drops as soon as the fire is turned off. Although the beans themselves can still bake themselves, there is a difference in temperature. 1. One kilogram machine: the temperature is still rising in a straight line, the taxiing time is about 30 seconds, and some beans are not careful.
There is no distinction between male and female coffee beans, only flat beans and round beans
Communication of professional baristas Please pay attention to the coffee workshop (Wechat official account cafe_style) Coffee beans are not male or female, this statement is purely a gimmick term coined by businessmen, the correct term is flat bean Flat Beans and round bean Peaberry. Under normal circumstances, a coffee berry has flat beans (seeds) that are split in half, but in a few cases the internal seeds do not split.
How to buy raw beans/what kind of raw beans are good raw beans
Professional barista exchanges Please pay attention to coffee workshop (Weixin Official Accounts cafe_style) Green bean sellers (refer to coffee farmers, green bean processing plants) must be responsible for coffee bean classification before selling to buyers (refer to importers, brokers, bean merchants). Once classification is completed, Coffee beans of two grades, Exceptional (Special) and Specialty (Fine), will still be classified.
Storage of coffee beans: can I put them in the refrigerator? Can you grind the powder for me?
Communication of professional baristas Please pay attention to the coffee workshop (Wechat official account cafe_style) [storage of freshly baked coffee beans] Grinding or not grinding, and how to preserve coffee beans are nothing but the issues that customers who buy beans are most concerned about. In Taiwan's current environment, raw beans can be preserved for half a year to a year. Baked cooked beans, away from damp and hot places, sealed and stored for two weeks without grinding.
![The difference between [Fair Trade] and [Direct Trade] of Coffee Raw beans in Ethiopia](https://world.gafei.com/uploads/allimg/170923/3-1F923115Q5326-lp.jpg)
The difference between [Fair Trade] and [Direct Trade] of Coffee Raw beans in Ethiopia
For the exchange of professional baristas, please follow the coffee workshop (Wechat official account cafe_style). At present, the large cooperatives certified by the Fair Trade Organization in Ethiopia are: SCFCU, OCFCU grass-roots village organization, these village-level cooperatives, many of the cadres are farmers and volunteers are coffee growers themselves. Most coffee trees are planted around the house and see coffee.
Introduction to the Origin and Award-winning of artificial Coffee Variety Pacamara Pacamara
The exchange of professional baristas please follow the birth of the coffee variety Pacamara (Pacamara) in the coffee workshop (Wechat official account cafe_style) ~ this legendary variety has peculiar plant shape and raw bean shape huge leaves and tall tree shape, the huge raw bean is known as the strange variety of El Salvador ~ he was unknown and was recognized by the judges in the 2003 / 04 COE competition.
What are coffee beans? Round beans taste better?
Professional barista exchanges, please pay attention to coffee workshop (Weixin Official Accounts cafe_style) often hear that round beans are sweeter, have better flavor and taste thicker ~ coffee bean flavor comes from two reactions: caramelization reaction and Mena reaction. When these two chemical reactions are more complete, the coffee flavor will be richer. Generally, coffee beans are oval and will not be heated consistently during roasting.
Differences of cutter heads of different bean grinders and analysis of their advantages and disadvantages
Professional barista communication please pay attention to the coffee workshop (Wechat official account cafe_style) bean grinder is generally divided into three kinds of flat knife, cone knife, ghost tooth * flat knife: coffee bean grinding method, flaky appearance, composed of upper and lower cutters, fixed motor base, rotating cutter head to cut coffee bean flavor: strong, single, obvious advantages and disadvantages of aroma: parallel placement of upper and lower cutters, hovering on the bottom
Baking curve sharing | Baking sun bean firepower and throttle adjustment
Professional barista communication please pay attention to the coffee workshop (Wechat official account cafe_style) * 120 ℃ slightly open the throttle (slightly smaller than water-washed beans), because sun-dried beans tend to be woody and the silver skin is not easy to peel off, steaming coffee beans allows moisture to increase the maturity of the beans themselves and reduce dryness, keep the beans more moisture at 150 ℃, easy to make the beans steam, easy to make the beans steam about 120 ℃ 168 ℃ (water-washed beans)
Coffee bag one-way exhaust valve what is the role? How long is it suitable for preservation?
Professional barista communication, please pay attention to coffee workshop (Weixin Official Accounts cafe_style) Freshly roasted beans will not extend the best tasting period of coffee (1 month golden period) because they are put into the clamping belt with one-way ventilation holes. One-way ventilation hole packaging design, more suitable for a large number of baking packaging after long-term storage use, such as hypermarkets marked with a shelf life of 6 months or 1 year coffee
The three main streams of coffee roasting: analysis and explanation of the characteristics of direct fire, semi-hot air and hot air
The exchange of professional baristas please pay attention to the coffee workshop (Wechat official account cafe_style) Coffee can be divided into three main categories: direct fire, semi-hot air and hot air: direct fire is the most difficult to do, the flavor is the most charming, and the so-called baking process is the most difficult to do, and the so-called baking process can be trained. Roasting and frying according to the roaster's personality is also different, and direct beans are not the same.
Preservation and grinding of coffee roasted beans
The exchange of professional baristas please pay attention to the division of labor of coffee beans in the coffee workshop (Wechat official account cafe_style). There is knowledge in each stage. From the professional knowledge of planting, production, baking, brewing and other professional knowledge, it may be enough for everyone to have a general understanding, pay attention to the division of labor and specialty, and leave the specialty of planting and production to the coffee merchant, but roasting, grinding and brewing coffee is the responsibility of you and my users.
Coffee and Health | 20 reasons to drink Coffee
Communication of professional baristas Please pay attention to different people in coffee workshop (Wechat official account cafe_style). Different bodies have different reactions to coffee, and the human body has a wide range of reactions to food and drinks (including coffee). There are different conditions at different times, and a few people do suffer from insomnia, tension, gastrointestinal discomfort, palpitations and palpitations after drinking one or two cups of coffee.
Some suggestions on making delicious roasted coffee
Professional baristas Please follow the Coffee Workshop (Wechat official account cafe_style) here are some suggestions for making delicious roasted coffee: for coarser coffee powder, the more inefficient the extraction of coffee by water and the more tasteless the coffee itself, any cooking method that will store the hot coffee for a period of time will greatly reduce the flavor of the coffee. Coffee plugged in at home
Five essentials for making delicious coffee
Professional baristas please pay attention to the coffee workshop (Wechat official account cafe_style) grinding roasted coffee beans has a lot to do with the grinding results. Coffee beans can not be ground immediately after baking, because they are not hard enough. If they are ground immediately, they will be broken, flattened and damaged. Coffee beans can only be ground when they cool and harden. There is a percentage of coffee beans themselves.