(1) Caramelization: the sugar in coffee beans is caramelized at about 170-200 ℃, which is exactly the melting point of sucrose (185 ℃) and the temperature of the explosion stage when coffee beans are roasted. The product of caramelization is divided into two parts: 1. The dehydration product of sugar is caramel or sauce 2. The pyrolysis products are mainly volatile aldehydes and ketones. In general, in the caramelization reaction
2016-07-20 Siphon make delicious coffee Japanese style single product Japanese utensils saccharification reactionWhether you are a coffee expert or an ordinary coffee lover, you will be attracted by the attractive aroma of that freshly ground coffee every morning. What you don't know is that this fragrance actually contains thousands of chemicals. To give you a better understanding of the chemical components of coffee aroma, we have drawn the following chart: in the face of such a complex chemical symbol, you may be
2015-08-25 Chemistry angle analysis coffee aromaIn Dongguan Nancheng Nestle factory near many residents complain: Don't think coffee smells fragrant, smell for a long time that is a kind of suffering! Nestle factories generally concentrate on emissions before 10 a.m. and after 7 p.m.
2014-05-29 Dongguan Nestle Coffee Factory Exhaust Gas Disturbing PeopleThe charming aroma of coffee is also the main reason why Napoleon, me and many coffee fans miss coffee all the time. But why on earth does the coffee smell so good? The most important thing, of course, is that coffee beans themselves are rich in a variety of raw materials, such as carbohydrates, proteins, lipids, organic acids, etc., and then heated and baked will start a series of complex reactions and create an attractive aroma.
2016-06-01 Coffee why so when baking saccharification Mena reaction coffee human incenseA few days before his death on St. Helena Island in 1821, his attendant, Marshal Bertrand, wrote about begging for it: "he asked for twenty times in the morning and asked me if I could give him some more coffee." "No, my lord, the doctor ordered you to drink only one spoonful of coffee. It's not time yet. You have a bad stomach. Drinking early will only make you vomit early. "he threw up nine times this morning.
2015-03-13 Coffee pick up process what Mena reaction 1821 Nasha HelenMany residents near the Nestle factory in Nancheng, Dongguan complained: don't think that coffee smells fragrant, it's a kind of suffering if you smell it for a long time! Nestle factories usually concentrate their emissions before 10:00 and after 7pm, when the white or even yellowish smoke can be clearly seen, and the coffee smells the most so that the windows are afraid to open. Public complaint: I have heard it for a long time.
2016-08-30 Dongguan Nestle coffee factory exhaust gas nuisance Nancheng Nestl é factory nearA few days before Napoleon died on St. Helena Island in 1821, his attendant Marshal Bertrand wrote about Napoleon begging: "he asked for twenty times in the morning and asked me if I could give him some more coffee." "No, my lord, the doctor ordered you to drink only one spoonful of coffee. It's not time yet. You have a bad stomach. Drinking early will only make you vomit early. "he threw up nine times this morning.
2015-08-31 Coffee why so when baking saccharification Mena reaction 1821 takeA few days before Napoleon died on St. Helena Island in 1821, his attendant Marshal Bertrand wrote about Napoleon begging: "he asked for twenty times in the morning and asked me if I could give him some more coffee." "No, my lord, the doctor ordered you to drink only one spoonful of coffee. It's not time yet. You have a bad stomach. Drinking early will only make you vomit early. "he threw up nine times this morning.
2016-06-20 Coffee roasting saccharification Mena reaction coffee beans 1821 takeA few days before Napoleon died on St. Helena Island in 1821, his attendant Marshal Bertrand wrote about Napoleon begging: "he asked for twenty times in the morning and asked me if I could give him some more coffee. "No, sir, the doctor ordered only one spoonful. A few days before Napoleon died on St. Helena Island in 1821, his attendant Marshal Bertrand
2015-11-16 Coffee aroma where does it come from why so attractive guide 1821Boutique coffee beans must be excellent varieties, such as the original bourbon species, mocha species and Tippica species. The coffee beans produced by these trees have unique aroma and flavor, which is far from that of other tree species, but the relative yield is low. in recent years, in order to pursue the ability of disease and insect resistance and increase the yield, there have been many improved tree species, such as the massive promotion of high-yield rurial11 species in Kenya.
2016-05-26 Coffee aroma where when baking saccharification Mena reaction boutique coffee beans mustEach barista uses a siphon pot to make coffee in his or her own way. After the coffee liquid is sucked into the pot, whether the upper pot forms a hill has been controversial in the industry. some people say that it must form a hill to complete the extraction, and if not, it will fail, including many professional books. Some people think that the hills are just good-looking, professional and stylish for coffee.
2014-09-27 Coffee knowledge siphon pot coffee technology coffee brewingEach barista uses a siphon pot to make coffee in his or her own way. After the coffee liquid is sucked into the pot, whether the upper pot forms a hill has been controversial in the industry. some people say that it must form a hill to complete the extraction, and if not, it will fail, including many professional books. Some people think that the hills are just good-looking, professional and stylish for coffee.
2015-01-13 Coffee making what use siphon tasting using pot brewing coffee