How to adjust the influence of Water temperature on Coffee influence of utensils on Water temperature

Water accounts for 94-98% of a cup of coffee, but in addition, water temperature (including minerals in water) can also affect the sweetness, bitterness and sour taste of coffee.

Controlling the temperature of the cooking water is very important for people who like to flush by hand, but unfortunately, the water temperature is often adversely affected by insufficient training or the use of the wrong equipment.

How does the water temperature affect coffee?

The water temperature will directly affect the release of different substances during cooking.

There are many chemical reactions during cooking. Water will extract chlorogenic acid, acetic acid, malic acid, caffeine, oil and so on. These substances will also be released at different time points. For example, caffeine and fruit acid are released in the first part of brewing, sweetness is released in the middle, and bitterness is released in the latter part.

So what does this have to do with water? The higher the temperature of the water, the faster the substance will be released, and since each substance affects a certain flavor, the cook must carefully control what is extracted at each time.

When the temperature is higher, it will be more difficult to control the extraction, and some substances with bad taste will be released quickly, and words such as too strong and scorched flavor are usually used to describe the coffee whose flavor is out of control due to high temperature extraction.

What about the low temperature?

The best evidence is that people usually say that the cold coffee is too light because the brewing water is too low. However, anyone who has drunk it knows that cold coffee is very smooth, sweet and low in acidity. Although lengthening the brewing time can make up for the low water temperature, some substances are not extracted at low temperatures. The release rates of different flavor components are different at different temperatures.

In addition, because the brewing time and grinding thickness can not fill the defect of brewing at low temperature, the brewed coffee will have a smelly sour taste and lack of alcohol thickness. Because the substance extracted is mainly acid, there is less fat to increase the thickness of alcohol, and less sweetness and bitterness to balance the flavor of coffee.

Accurate cooking is very important, and controlling the water temperature will give you a better flavor.

It is very important not only to have the correct water temperature, but also to maintain the consistency and accuracy of cooking. Unstable water temperature is like turning the oven on and off all the time when baking a cake, causing the oven to lose temperature, and the result will be very bad.

Bad appliances can also affect the temperature of the water.

Unfortunately, water temperature has always been a big variable, and it is impossible to completely remove it, but it can be controlled.

The appliance is also the key to control the cause. Pots with poor thermal insulation and poor heating appliances often lead to unstable results.

Insufficient hot water supply is usually the result of a lack of accuracy in temperature control, coupled with cold water being poured into the water heater at the same time. It is important to use appliances with a stable temperature of water supply. A good machine can even make espresso of stable quality.

A good Italian coffee machine can accurately control the temperature, and it is correct to let the water come into contact with the coffee powder. The problem with hand-brewing coffee is that you often have to add hot water to the hand-brewing pot, which will lead to a drop in the temperature of the kettle.

Train baristas to make the water temperature more stable

However, the point to consider is not just the equipment. High-quality water control systems, such as Marco MIX, can accurately control water temperature. However, if someone pours hot water into a cold hand flushing pot or uses an unpreheated filter cup, it will cause the temperature to drop by more than ten degrees. Preheating hand pots, filter cups, sharing pots and cups are all very important.

Therefore, a well-trained barista is very important, not only the process of preheating the utensils, but also related to cooking skills. The method of brewing will also affect the variation of the water temperature. if you do not keep the coffee powder wet all the time, it may be because the coffee grounds in the filter cup affect the water temperature, resulting in unstable temperature.

Formal education and training, and even participation in professional cooking courses, can help to improve the situation.

As long as it comes to water temperature, there are many factors that will affect the quality and stability of coffee, to ensure that you have high-quality equipment, you can accurately control the brewing factors. Set the standard procedure for hand punching. And whether it is cooking in the store, or planning to take the certification exam, good training is necessary.

After all, good beans have to be washed well to give full play to their flavor.