The original function of coffee is to refresh the mind, whether it is an espresso that you can drink and leave, an American drip pot coffee that is resident in the office, or even a hand-poured single product coffee that you drink in a coffee shop, it has the function of refreshing. It's just that everyone chooses the right coffee according to the requirements of the scene, function, and taste.
So, with so many types of coffee, what is the most refreshing coffee to drink?
Why does drinking coffee refresh you?
The refreshing effect of coffee is mainly due to caffeine, the reason why we feel tired is because we have a substance called adenosine in our body that is controlled, and the longer we are awake, the more adenosine will accumulate in the body, and it is easier to be sleepy. Caffeine is a substance that blocks the binding of adenosine to the nerves of the brain, so the brain does not receive the "message from adenosine as exhaustion", so it continues to work energetically, so that people do not feel tired (translated as you use caffeine to trick your brain).
So the most refreshing coffee is definitely the one with a higher caffeine content. And the amount of caffeine in the final coffee depends mainly on the caffeine content of the coffee beans and how the coffee is made. So Front Street is divided into these two steps to discuss.
The caffeine content of coffee beans
The caffeine content of different varieties of coffee beans is also different, and in our common coffee, it is mainly divided into Robusta and Arabica, Robusta (Luo Bean) has more caffeine content, accounting for about 2-4% of its own bean weight (mostly concentrated in about 3%), and Arabica although there are many varieties in specialty coffee, but in terms of caffeine, they are all 09-1.4% (mostly concentrated in 1.)around 2%).
So, if you want to get more caffeine, you should choose Luo beans, and if you don't want to consume too much caffeine, choose Arabica coffee beans. Some friends have also heard of natural decaffeinated coffee, here is a brief introduction to the front street, natural decaffeine coffee also belongs to the Arabica species, caffeine is 1 2 of ordinary Arabica, about 0About 6% is still relatively high for some friends who are caffeine intolerant. If you want to drink coffee but don't want to consume caffeine, you can choose artifeinated coffee, which contains almost no caffeine.
Caffeine content of various extraction methods
The caffeine content on drinks is usually labelled in the form of XMG 100ml. It is mainly based on the capacity, but if this is more suitable from the barista's point of view, it is more appropriate to use 1 cup or the actual amount of coffee powder used as a unit of measurement. For example, whether you make a latte or an Americano, as long as you use the same amount of espresso as the base, their caffeine is the same.
Or, add 1 shot of espresso to a glass of 200ml of water and 300ml of water respectively, if you calculate it with XMG 100ml, the caffeine concentration of the cup of 200ml will be higher than that of 300ml, but everyone will actually consume the same caffeine content under the premise of drinking it all.
The amount of caffeine released is also related to the time, under the same high-temperature extraction, the caffeine content of the extraction time will be higher, so the caffeine content of espresso-based coffee drinks is not the highest, and the caffeine content of hand-poured filter coffee and French press-based infuser-infused coffee is higher. Although cold brew and iced drop coffee are low-temperature extractions, the ultra-long extraction time makes the caffeine content higher than the previous ones.
The lower front street gives some common coffee drinks caffeine content reference: (Note: Coffee beans are Arabica; Cold Brew and Ice Drop Coffee are affected by the extraction time, here 8 hours for ice drops and 12 hours for cold brew).
espresso (20g powder, 40g coffee) about 100mg;
Latte, Americano, cappuccino, etc., have the same caffeine content as espresso.
Pour-over coffee (15g powder 195ml coffee) about 90mg;
Pour-over coffee (20g powder 260ml coffee) about 120mg;
French press (20g powder for 4 minutes) about 135mg;
iced drop coffee (a cup of 20g powder 200ml coffee) about 135mg;
Cold brew coffee (a cup of 20g powder 200ml coffee) about 140mg;
Hanging ear coffee (a bag of 10g powder 120ml coffee) about 50mg;
Instant coffee (one bag) is about 50mg. In fact, sometimes coffee does not necessarily have to be drunk to refresh yourself, after the verification of the editorial department of Qianjie, the refreshing effect of coffee being drunk by the computer is faster and stronger than drinking it yourself, if you don't believe it, you can try it.
end - Front Street Cafe.
No. 10, Baoan Front Street, Yandun Road, Dongshankou, Yuexiu District, Guangzhou City, Guangdong Province.