How to distinguish good coffee beans? Beans ripe enough, beans dry phase, aroma can not last!

Professional barista communication, please pay attention to coffee workshop (Weixin Official Accounts cafe_style)

Coffee is a drink that many people drink every day, but are you drinking it right? How to distinguish fresh coffee beans, teach you from the color appearance and taste of coffee beans are good or bad. After buying coffee beans, how to preserve it also has some knowledge!

Good bean characteristics: ripe enough, beans coherent, aroma is not lasting

Generally drink bitter heavy roast coffee, want to add sugar, enjoy sweet taste; light roast is sour heavy, will also add creamer, cream ball, sugar and other condiments. These additives will make coffee deteriorate, causing various burdens on the body and do not know, the author is more respected in the middle of the road, a little bitter coffee, a little acid, if we want less bitter, more sweet, that is, choose medium roast. At the beginning of roasting, the acidity is bright, but with time, the acidity gradually disappears, and the coffee beans will gradually age.

People often ask why beans have a strong aroma, but no aroma after brewing? In fact, the amount of natural aroma can be clearly identified by smell, and beans can see whether the beans are aging, if the aroma of ripe beans is too strong, you can first expose coffee beans to the air for five minutes; if you can still smell the aroma after more than three days, this is added essence or other additives, which may cause harm to the body of the drinker. If you have the opportunity, you can try to compare the aroma of coffee beans, it is not difficult to distinguish, if it is a coffee, in order to be safe, you should choose not to drink.

Also to share is: beans ripe enough, beans dry, aroma can not last long is the characteristic of good beans; and beans bright, greasy, aroma is too strong, it is likely that the essence is aggravated. And when you open the coffee bag, smell the coffee beans have a moldy smell, oil smell, please do not feel that it is a pity not to drink, some people think that friends will not be sorry for each other, it is simply hurt themselves. The aroma of real coffee beans is rich, and the smell of the aroma goes straight to the head, and when it is tasted in the mouth, it will make people feel happy, eliminate fatigue, and want to refill the cup.

Once again, good coffee can be judged from the appearance of color, taste slightly sour or slightly bitter is normal, because it is the performance of micro-acid, chlorogenic acid and caffeine, must not be light coffee color or burnt black, light coffee color must be light roast high sour; burnt black must be high bitter. A good aroma is definitely not a burnt smell. Why is there a burnt smell? Because to cover the bad taste of inferior cooked beans, we have to roast them deeply. When the water is gone and the beans become lighter, we add fresh milk, creamer and other additives to improve the aroma. Finally, the cost increases only to enhance the taste. Therefore, heavy roasting is burnt coffee, not so-called carbon coffee.

The real charcoal burn is to use fruit tree charcoal as the fire source, coffee cooked beans will have a light charcoal aroma. I hope you can distinguish whether it is a real carbon roast coffee when you buy it, and hope that a good cup of coffee can get therapeutic effect, because coffee is rich in phytochemicals, has a very high antioxidant capacity, which can not only enjoy taste buds, but also obtain good health.

Perfect preservation, old beans also have good performance

Occasionally, I will see online articles mentioning that coffee is freshest within an hour after roasting, and then it begins to decay and age. Is this true? If it is true, it is not only Taiwan, the coffee of the world's famous chain coffee shops is not fresh, the freshness of coffee beans can be distinguished from the appearance of dark green, water content of new beans or old beans, and cooked beans from the appearance of roasted cooked beans and oil, you can obviously see whether fresh, as described above.

Coffee beans mass production, fruit farmers or the government to balance the price, adjust inventory, market supply and demand, in order to stabilize the market price, but the storage method of beans is very important, warehouse ventilation, dehumidification, avoid moisture or growth of aflatoxin, if the facilities are perfect, even old beans can play a good coffee performance.

Bean phase has flower dot or flower spot, throw away immediately!

Read a few times coffee beans phase has flower spots or spots, in fact, that has been damp or aflatoxin contamination, the best to see on the throw away, do not bake again! Because there are spots, flowers contaminated coffee beans, once roasted can not be seen from the appearance, in case of drinking aflatoxin contaminated beans, toxins will accumulate in the liver and finally cause cancer.

Green coffee beans breathe, and bag inflation is normal.

From the coffee packaging on the market without sealing or ventilation holes, accounting for the absolute majority, some people say that one-way ventilation valve is a new invention, let people smell incense; some people say that it is to let the carbon dioxide in the coffee cooked beans to keep fresh.

In the media or books often see that coffee beans to be sealed, then why vent valve? In fact, coffee beans will breathe, after roasting will breathe more, spit out inert gas to protect cooked beans, is the mystery of nature. Inert gas will naturally occur, protect the freshness of beans for a long time, will cause the phenomenon of pot swelling is normal. Beans high freshness, ripening immediately after bagging will have swelling bag phenomenon, this is not corruption, but preservation phenomenon. Many coffee bean manufacturers seem to know or do not know that in order not to expand the pot or bag, let the beans contact with the air, so that the inert gas is lost, at this time the beans will also absorb moisture from the air, so it is more difficult to keep the coffee beans fresh.

Fresh storage, simple steps

Many people will ask how to keep coffee beans fresh, in fact, it is very simple, first look at the baking date, record three months is fresh; packaging is sealed, opaque; not close to the heat source, room temperature storage, can not be stored in the refrigerator, because each time from the refrigerator out of the open, due to the high temperature difference, the bag will immediately adhere to the condensation of moisture, repeatedly increase humidity, beans will not be fresh. The author has done experiments, put room temperature for one to two months and the same period of storage refrigerator as a control, room temperature beans aroma unchanged; and ice coffee fragrance is light. Coffee beans generally breathe, and beans with fat, if the beans frozen or refrigerated, beans will freeze the fat and can not breathe, resulting in flavor loss.

Keep fresh in small sealed packages

Coffee beans should be packed in small packages, stored in sealed bags or sealed cans, and soaked as soon as possible, but we often see people buying large packages for low prices and saving money, which takes a long time to drink, which is not fresh. The bag is often opened to air, allowing bacterial spores to escape into the coffee bag, reducing the freshness to spoilage and not knowing. Fresh beans from the appearance of dry, aroma compelling, very clear freshness, people immediately make an impulse to brew a cup of coffee.

Filter paper ear hanging freshness difficult to distinguish

The author is more worried about filter paper ear coffee freshness difficult to distinguish, ground into powder can not distinguish from the appearance of beans freshness, and powder ground, coffee aroma loss, so ear hanging type is difficult to drink a good taste, can only facilitate craving, it is difficult to quench thirst, its high cost, hand contact area when packaging, hygiene is also a problem. Of course, the contents of three-in-one or two-in-one coffee are not nutritious and cannot be compared with fresh roasted beans, but the choice of ear coffee tasters and fans who particularly prefer this flavor are numerous because of their ease of carrying and brewing.