instant coffee tastes the same after drinking too much, and it is not as mellow as coffee.
Starbucks, the taste is good, and it is addictive. I have several membership cards. But the cost is too expensive. The most important thing is that there is no Starbucks in our hometown.
dripping coffee. Brewing requires patience, and the concentration is difficult to achieve. Can't make espresso mellow.
espresso. It takes too much time. It is also difficult to do, first, the mellow espresso.
So I bought Delong's semi-automatic italian coffee machine-Delong 33.21 on Taobao. The simplest one. After all, the funds are limited, and the price is 798 yuan. Plus grinders, coffee beans, measuring cups and electronic scales, it's more than 1. It's really a into the pit as deep as the sea, but there's no way. If you want to make a good coffee, you must control it accurately.
I have searched a lot of information on the Internet recently, and there are still many factors needed to make a good espresso.
the quality of coffee beans (freshness and roasting degree), the fineness of coffee powder grinding, the amount of coffee per serving, the strength of cake pressing and the extraction time. These are not counting other ingredients needed for other kinds of coffee, such as latte, milk needed for cappuccino and whipped milk.
The scientific method can be repeatedly verified and falsified.
under limited conditions, control the controllable factors to maximize the repeatable results.
The current basic operational standard
Time: 25 seconds (2-3)
Flour quantity: 8-1g (single serving)
Coffee quantity: 3ml single serving (25-35ml) 6ml double serving
The basic principle is Flour quantity: coffee quantity = 3.4. . . Sweat)
3. Press the powder lightly (what is the so-called light pressure? )
Make your own experiment on this basis.
test reason
1. The concentration of espresso+oil (which is beneficial to flower pulling); Rich in taste, smooth and slightly bitter, the key is that you want to drink satisfactory coffee.
2. according to your own conditions, meet certain standards and can be verified repeatedly.
accurate controllable factors
time (extraction time and milling time), powder amount, coffee amount (which can be partially fuzzy, such as a flat spoon =6.7g, with a difference of .1g)
fuzzy controllable factors
powder pressing strength (powder uniformity), standard powder pressing strength of 3 lbs (Baidu, from personal operation, it is difficult to control. And once tested, the coffee doesn't come out for 25 seconds, which is inconsistent with the machine)
1. Light-no pressure
2. The weight of a powder hammer is 555.5g
The fineness of the powder (with the time of grinding for 18 seconds)
Uncontrollable factors
The quality of the coffee (fresh, roasted and oil),
experimental objects:
1. different kinds of coffee beans
2. single and double servings
3. time
making experiments:
instruments: Delong 33.21, LONG PUSH grinder, 5ml measuring cup, machine-allocated powder spoon (corresponding to the amount of machine powder box), electronic weigher and powder hammer. Powder hammer 555.5g
Basic steps (reducing interference factors and achieving consistency of conditions)
Inspection: coffee machine: water outlet hole is not blocked, and the handle is clean
1. Coffee machine: heat engine
2. Heat the handle, place the measuring cup (hot cup), and return to the right position until the hot water outlet light goes out.
3. Prepare coffee powder
4. Take out the handle and wipe it with a dry towel without moisture
5. Put it in (coffee powder) and flatten it.
6. Empty cup, without moisture, and leave it.
7. Load the handle, (timed extraction) (opening-closing time)
8. Calculate (coffee quantity).
9. clean the water outlet and handle.
The steps seem cumbersome, but it actually takes only about 3-5 minutes.
Repeat step 1 2 every time you start the machine.
Repeat step 3-1 every time you test.
Parentheses are test control points.
Conditional restrictions
1. Choose regular coffee to save costs.
2. Choose spoon as the measurement to match the machine and save time.
3. A single person can drink up to two cups a day, and a wife can drink up to four cups. I can't drink too much. The experiment is a long-term process.
The experiment is still going on. I hope to make a delicious Espresso one day earlier.