What do you pick by hand? Coffee defective beans

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Coffee raw beans are often mixed with raw beans and bad beans, which refer to some sand, gravel and withered branches, while bad beans are often called "defective beans". Before baking, if you are not careful to pick out these defective beans and defective beans manually, it will affect the overall taste of coffee products.

For coffee brewers, the cost of picking beans by hand is high, but you can make sure that the quality of coffee beans is good! It is often used to pick out pebbles and other items in the factory, but it is not possible to pick out the coffee beans. The pipe focuses on a single machine for picking beans, which saves both labor and cost, but it does not save labor for quality.

The following is based on the defective types of raw beans listed by the SCAA Fine Coffee Association:

All black beans, half black beans

Cause: immature beans are fermented during the refined process, causing microbial infection.

Coffee and peach

Cause: defects in the process of removing pulp in raw bean processing, or errors caused by lack of warranty in the classifier.

Sheepskin membrane bean

Cause: machine handling defects in the drying process.

External objects

Cause: non-coffee bean products may be caused in the production process.

Whole sour bean / local sour bean

Cause: during harvest and raw bean harvest, bacterial infection occurs due to microbial invasion and infection.

Fungus infected bean

Cause: poor storage process is the main cause, such as sporadic spores will infect other beans.

Micro / heavy borer

Cause: the coffee borer invades and breeds when the coffee fruit is ripe, and the young eat the fruit, usually from one grain to another.

Unripe bean

Cause: coffee is harvested when it is immature or partially ripe.

Withered bean

Cause: poor condition or lack of water for a long time.

Floating bean

Cause: excessive dryness or improper storage during processing.

Soya bean

Cause: it is caused by genetic transmission.

Broken bean

Cause: fine treatment process, such as washing, washing, etc.

Look at the above all kinds of defective beans are not very annoying! If these bad beans are not specifically singled out, the roasting of these bad beans mixed with good beans will greatly affect the whole coffee product, which can also be said to be "a grain of rat shit makes a lot of porridge."

From hand-picking beans to fresh roasting, it has never been a gimmick, but only to make transparent these basic processes in the process of coffee making, so that consumers can feel at ease and generate confidence. it is also the coffee maker's sincerity that he or she wants to show a good cup of coffee.