The secret of making delicious coffee is the source of delicious coffee.

High quality coffee beans are the source of delicious coffee. Good coffee beans smell delicious mellow, look full and uniform particles, complete shape, bright color, simply fragile by hand pressure (hand pressure is not broken called "dead beans").

At present, coffee is grown in more than 70 countries in the world, and the best products are produced in tropical areas 1000~1500 meters from the sea. Famous varieties include Colombia coffee, Brazilian Santos coffee, Ethiopian mocha, Indonesian mantenin, Italian coffee (with more than 2 varieties of coffee blending) and so on. Blue Mountain coffee produced in Jamaica is regarded as the highest grade coffee, selling for 1200~1300 yuan per kilogram in China.

Coffee trees are evergreen tropical shrubs. Coffee fruit is dark green at birth, yellow, red, and finally red. The pair of seeds contained in the fruit are "coffee beans". Coffee beans can only produce unique aroma and flavor after roasting.

Generally speaking, roasting time is short, coffee beans are light brown, sour strong; roasting time is long, bitter aggravation, color is dark brown. Coffee has five flavors: alcohol, incense, sweet, bitter, acid, different varieties of coffee, flavor has its own emphasis, need to choose the corresponding degree of roasting can play its unique flavor to the best, like the standard taste of Colombia coffee, Blue Mountain coffee, generally to moderate roasting for the best, and Indonesia's Mantenin must be re-roasted to play its fragrant bitter characteristics. Coffee purchased after opening should be placed in an airtight jar, stored at a low temperature, should be drunk as soon as possible to maintain the best quality.

Control coffee powder thickness, weight, water and brewing method with fresh coffee beans freshly ground coffee, the best flavor. 12 grams of ground coffee is required to make a standard cup of coffee (about 4 - 5 ounces). General acid beans coarse grinding, bitter beans fine grinding. When making weak coffee, you can grind it coarser. When making strong coffee, the coffee powder should be ground fine, and the feed ratio should be increased accordingly. Brewing methods have a variety of, the simplest way is to put coffee powder in the filter bag directly to boiling water brewing, this method of coffee can retain the fine foam coffee oil (one of the signs of good coffee), but slightly sour. If brewed with coffee pot, pay attention not to use mineral water, boiled time not too long. Another common siphon method requires special equipment. The coffee produced by siphon method is lighter in acidity, but there is no coffee oil.

For a perfect cup of coffee, the warm cup is at least 20 percent responsible. No matter how well brewed the coffee is, pour it into an ice-cold cup and the temperature of the coffee immediately drops and the aroma is offset by half. The coffee cup is warmed in advance, and not only the heat is preserved after the coffee is poured, but the temperature of the cup is more suitable for brewing the aroma, so that the aroma of the coffee is completely released.

There are many ways to warm the cup, you can put it in a dish dryer to warm it, you can also put it in a hot water bath, or pour hot water into the cup to blanch it.

Taste pure coffee, almost tea. Smell the coffee first, then blow on the coffee oil and sip it. This is the original flavor of coffee, and then add sugar and milk according to personal preference. The standard stirring technique is to place the spoon in the center of the coffee cup, circle clockwise from the inside out to the wall, circle counterclockwise from the outside to the center, and repeat the same technique. This method makes coffee even.