The trend of drinking cold brew coffee is becoming a hot trend. My friends who weren’t interested in coffee before, are now captivated by cold brew as well. Around me, people are talking about this new coffee. Many new recipes were created. They put everything into cold brew bottles and turn ordinary coffee beans into more magical than ever.
Actually, I like cold brew myself. I still drink it sometimes. Simply because it is so easy to make and so easy to drink. It’s also made from coffee, so it will also boost my mood. In terms of taste, it is also much different from traditional coffee cups. Overall, it’s quite a novel trend and it’s interesting to see how people are embracing it.
And then my longtime clients started calling me to say they’d heard about a much healthier way to make cold brew coffee than regular hot coffee. That from now on they will switch to cold brew coffee instead of the previous espresso, filter, pour over… They want to stop drinking hot coffee because they read a There is an article about cold brew coffee and the outstanding effects and safety of this type of coffee.
Of course I don’t care about anything other than my longtime clients… they are confused. And this article is exactly what I promised them a thorough explanation.
We already have the big question in the title, so let’s start with the small questions.
Coffee in general or cold brew in particular have been proven that they contain many antioxidants, anti-inflammatory substances, substances that are beneficial to the brain, digestive system, intestinal tract, anti-cancer, and diseases of the liver. heart disease, diabetes and reduce the risk of stroke. You can believe the above because they are true.
However, some think that cold brew coffee is much safer and healthier than regular hot brew? There’s only one way to answer this question: it’s science.
In the ground coffee powder, there are a variety of volatile and non-volatile substances. These are oils, acids, sugars and scent molecules, which are called coffee solubles. These solutes contribute largely to the flavor of a cup of coffee.
Brewing coffee is the process of extracting these substances from the grounds. There are two main factors in the extraction process that make the difference between cold brew coffee and hot brew coffee, which are temperature and extraction time.
Solubles are extracted best at temperatures around 95-97 degrees Celsius. So, with more solutes extracted, coffee brewed with hot water will have a fuller flavor than brewed coffee. with cold water.
Evaporating hot water brings with it many scent molecules that will make hot brewed coffee more fragrant, clearer and fuller of flavor.
Also at high temperature, oxidation and decomposition also take place stronger and faster. Acid gives the sour taste to broken coffee, most notably chlorogenic acid breaks down to quinic acid and caffeic acid creates a bitter taste for coffee water.
When making coffee by cold brewing, these substances are more difficult to extract. The dissolved solids content is markedly lower than the hot water method. That’s why you have to double the amount of coffee powder when cold brewing and steeping it for at least 8 hours instead of a few minutes like regular brews.
Cold water evaporates less, which means that cold brew has fewer scent molecules and makes the coffee less aromatic. Oxidation and acid breakdown still take place, but at an extremely slow rate.
Especially if the water is maintained at a cold temperature, the coffee has almost no sour and bitter taste. At this time, when it is no longer overwhelmed by bitterness and sourness, the sweetness of the sugar molecules will appear more prominently and clearly as a dominant flavor. So when enjoying cold brew, people often rate it as sweeter, but now you know that’s not the case. That’s just because it’s less sour and bitter than hot brewed coffee.