Boutique coffee learn what's in a cup of coffee

According to Wired magazine reported on the 11th, many people like to drink coffee, in many countries, coffee is the best-selling drink, the global annual output of coffee beans reached a staggering 16 billion pounds. But specifically, do you know what substances are contained in a cup of coffee?

Now scientists have the answer:

Caffeine is actually an alkaloid phytotoxin (such as nicotine and cocaine) that stimulates us by blocking our sleep chemical adenosine receptors to keep us awake.

■ water

Hot water is a super solvent that releases aromas and oils from coffee beans. A good cup of coffee contains 98.75% water and 1.25% soluble plants. Caffeine is a diuretic, so people who start drinking coffee urinate quickly, but people who are addicted to coffee have a stronger ability to resist urination.

■ 2-ethyl phenol

It can make you wake up in the morning and smell like tar medicine. It is also one of the components of cockroach alarm information hormones that warn of dangerous chemical messages.

■ quinic acid

It gives the coffee a slight sour taste. In addition, it is a chemical of Tamiflu.

■ 3,5 dicaffeoylquinic acid

When scientists used this acid to interfere with neurons in the laboratory, they found that it could prevent some of the damage caused by free radicals to cells. Therefore, coffee is a good antioxidant.

■ dimethyl disulfide

A substance produced by roasting raw coffee beans, found only in the early stages of brewing coffee, is also a good thing and is one of the chemicals that give human faeces a smell.

■ acetyl methyl methanol

Acetyl methyl methanol is a flammable yellow liquid that helps give butter a smell and is an artificial seasoning in microwave popcorn.

■ putrescine

What makes spoiled meat so poisonous? The answer is right here. Putrescine is produced by the decomposition of amino acids by E. coli in meat. Putrescine is naturally found in coffee beans, and as you can guess from its name, it smells foul.

■ trigonelline

In terms of chemical structure, it is a folic acid molecule with a methyl group. Fenugreek alkaloids decompose to produce pyridine, which gives coffee a sweet earthy smell and prevents dental streptococci from clinging to your teeth. Therefore, coffee can inhibit oral bacteria.

■ nicotinic acid

Trigonelline becomes unstable above 160 degrees Fahrenheit and the methyl separates and releases vitamin B3. Two to three cups of espresso can provide you with half the daily recommended amount of vitamin B3.