Know what coffee beans taste good or not. Do you know which Starbucks coffee beans taste good?

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Coffee bitter culprit-roasting

When we talk about the bitterness of coffee, we often associate it with roasting, but in fact some bitterness is also related to green coffee beans. Coffee beans themselves are not bitter, coffee bitter is produced from the process of raw beans into mature beans, that is, coffee beans roasting. Green coffee beans contain an ingredient called chlorogenic acid, which plants produce in response to environmental changes and is found in many plants. The bitterness of coffee is related to chlorogenic acid.

Robusta coffee, for example, is bitter more than Arabica because of its higher chlorogenic acid and caffeine content.

During roasting, chlorogenic acid is broken down into quinine acid and caffeic acid, and coffee beans appear sour (from quinine acid) and astringent (from caffeic acid). At this point if continued baking, quinic acid into quinic acid lactone (taste bitter), caffeic acid into ethylene catechol ethylene catechol is not only bitter, but astringent. Generally speaking, the longer and deeper the roasting, the more bitter the beans taste.

Well, it's simple. If we want coffee that's not bitter, try to choose beans that are light to medium roast (Arabica beans are best). As long as bakers are not dozing off, they usually don't step on thunder.

However, why do some beans clearly others do not suffer, you only at home to do not pull a few bitter? In fact, even light roasted beans undergo chlorogenic acid decomposition, so there is almost no coffee that is truly "a little" bitter. Is your coffee extra bitter? That's because you opened it the wrong way!

Coffee takes too long!

Overbrewing coffee is the most common cause of coffee taste bitterness. Like tea, coffee powder can also be soaked in hot water slowly bubble flavor, but different degrees of coffee powder suitable brewing time is not the same. If brewing time is too long, bitter substances are easy to extract too much, making coffee bitter and burnt, and a mouth of wood flavor!

You need to know how long your chosen brew is suitable for brewing, and prepare a timer so you know when coffee is best!

2, brewing water temperature is too high!

In order to be lazy, many people boiled the water directly, or relied on a mysterious method such as "how many minutes to cool to about how many degrees" to determine the temperature of the brewing water. The result is often excessive water temperatures, resulting in over-extraction.

If you insist on estimating how many minutes and seconds it takes to make coffee after boiling water, remember: hotter water = bitter coffee; cooler water = weaker coffee. If you want to make coffee with the right concentration and pleasant flavor, it is best not to save the thermometer money. If you can buy a temperature-controlled kettle or hand-made pot, you can easily avoid bitter coffee caused by too high water temperature.

3, do not pay attention to the quality of coffee beans

No matter how much the principle of "one penny, one goods" is said, there will always be people who will be lucky. Not all coffee beans are of the same grade and quality, and cheap commercial coffee beans can mask most of the flawed flavors caused by low-altitude cultivation and industrial harvesting as long as they are deeply roasted at high temperatures. If all you can taste in your coffee is burnt bitterness and charcoal, and there is no pleasant sour or sweet taste of fruit, you are over-roasting. This bean or throw it away, add more sugar and milk, can not save this cup of coffee charred bitter.

How? Buy beans!

Even if a half-pound bag of beans costs $100 and can be brewed 15 times, the average cost per cup of coffee is only $6 or $7 (such good beans should not be added sugar and milk to waste flavor). Compared to the outside chain coffee shop often 2, 30 cups of coffee to be affordable too much, the quality is too good! If you ever taste really good coffee, you'll never go back to the world of bad beans!

Try more coffee beans from different producing areas and different stores, and you will find that the world of coffee is not only instant and freshly ground. Coffee can be like tea, like cocoa, like red wine, or like a nice cup of fruit juice!

4. It's too thick.

Does it taste bitter when it's strong? That's right! Human taste has a certain bearing capacity, when it exceeds the load, it will only feel bitter or miscellaneous. This bitter taste can be dissolved after saliva secretion. As long as the coffee is diluted to the right concentration, you will find that the bitter taste magically disappears or is not obvious!

Set your daily powder-water ratio, then try adding a little more water to the brew. If you notice less bitterness and better taste, change your fixed powder-water ratio. Gold cup extraction can be referred to, but it is only a reference, there is no need to copy.

5. Coffee powder is too fine

When your coffee is ground too finely, it is easier to extract too much bitterness in the brewing process, which is the same principle as high water temperature and long soaking time.

Sometimes it is not a bit coarse grinding can solve the bitter taste, some grinding machine grinding is not uniform enough, too much ultrafine powder, it is easy to bring bitter taste. At this time, you need to choose a moderate grinding degree (or sift out ultrafine powder) according to your brewing method, so as to minimize the interference of bitterness under the premise of ensuring that the coffee flavor is washed out.

6. The brewing utensils are too dirty!

This is the most easily overlooked and most likely to hit the board! The bean grinder should be cleaned regularly; the filter cup and container should be cleaned in time; the filter cloth and filter screen should be replaced or decontaminated regularly; the filter element of drinking water filter should be replaced regularly, and the kettle and hand kettle should be removed regularly....

How to save it? Don't be a bum!

It's cool to cook at home for a while, and it's always cool at home. If you want to use tea dirt to keep utensils like Kungfu Tea, I'm afraid you're thinking too much. The dirt of coffee will deteriorate, interfere with the normal taste of coffee, and seriously affect your health. If you want to be lazy, you can try to choose brewing methods that are easy to clean and take care of, such as hand-made coffee or smart cup of coffee.

Starbucks coffee beans will be selected every season, there are different flavors of coffee beans in different producing areas, you can choose according to your favorite flavor.

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