What is the mixed smell of coffee? How can I detect the mixed smell of hand-brewed coffee?

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When tasting a cup of coffee, sometimes people who will drink coffee will say that this cup of coffee has a "mixed smell", but what exactly is miscellaneous smell? And how can it cause the coffee to smell mixed?

| | Miscellaneous smell |

The editor believes that if the entrance of a cup of coffee has some grass green taste, sharp sour taste, inferior soil and so on mixed together, can not clearly identify the coffee flavor, this is miscellaneous taste. In fact, miscellaneous flavor is relative to cleanliness, such as excessive or insufficient baking, excessive fermentation, medicine, burning plastic, onion, soil, astringency and other relatively negative taste.

| | causes of miscellaneous smells |

Harvesting and handling of Coffee

Perhaps in the unified harvest mixed with some immature coffee cherries, so the coffee will taste with straw, grass green, sharp choking taste and so on.

If the harvested coffee cherries are directly placed on the ground in the process of processing, they will be more likely to be contaminated with the smell of soil.

Baking

If you don't get enough dehydration when baking, the coffee will taste like grass, astringent and stinging. And uneven roasting beans, the skin is usually deep, and the inner core is shallow, prone to epidermis burns, making coffee with bitter, smoky taste.

If the overall baking is shallow, the baking will be uneven, similar to lack of dehydration, the flavor development is not complete, the plant flavor is strong, sharp and thin.

Defective bean

Everyone must know how annoying defective beans are. After all, a defective bean can ruin a good cup of coffee. For example, Baimu beans / immature beans can give you a cup of coffee with fried melon seeds, straw and even salty taste.

For example, moth-eaten beans will taste sour, rotten, stinging and astringent in the mouth; and moldy beans, which are moldy and moldy, will have a strong mildew and medicinal taste, and will taste like a refrigerator.

Brewing and cooking

When cooking, if you are not careful, it will be easy to produce miscellaneous smell. After all, there are 30% of the soluble substances in coffee, but only 20% of them are delicious. Beyond this 20%, there will be some bad flavors, such as wood, bitterness and other messy flavors.

If the fine powder is too much, it is easy to extract when cooking, and the chance of miscellaneous smell will be greater. Or if the extraction time is too long, it will be easy to extract those bad and messy flavors.

In the end, I have to mention the item of "cleanliness" in the cup test. The first place in the COE score table is enough to prove how important "cleanliness" is. The so-called cleanliness is the defective taste without defects and stains, and the flavor is clear and easy to feel.

High cleanliness of coffee equals low complexity of flavor?

The editor believes that these are two concepts that will not interfere with each other. Coffee with high cleanliness can also have rich flavor and hierarchical performance. A cup of coffee tastes clean, saying that there are no miscellaneous and peculiar smells that affect the taste and flavor, which is also explained in the materials of major books and cup test standards, while the complexity of flavor, it is related to the variety of coffee, planting conditions, treatment and roasting methods, is a series of results.

According to the editor, miscellaneous flavor actually includes defective flavor but is not limited to defective flavor, such as the woody flavor of coffee, which can be said to be a keynote, which is a possible taste of almost every kind of coffee, but the bad woody flavor tastes as disgusting as rotten wood water. And miscellaneous smell always gives people a very messy feeling, there is a whole cup of coffee flavor has been stirred up the feeling of muddy inside.

A good cup of coffee looks very simple, but it is good to pay attention to it when brewing, but in fact, the quality of a cup of coffee begins to be affected by the step of harvest, and brewing is only the last step in the whole process.