Because the ground coffee beans in cold-brewed coffee never come into contact with heated water, the process of leaching flavor from the beans produces a chemical profile different from conventional brewing methods. Coffee beans contain a number of constituent parts that are more soluble at higher temperatures, such as caffeine, oils and fatty acids. Brewing at a lower temperature results in lower acidity and lower caffeine content when brewed in equal volume. It is around 65 to 70 percent less acidic than hot drip coffee or espresso, per part. Although less caffeine is extracted with the cold brew method, a higher coffee-to-water ratio is often used, between 2 and 2 1/2 times. This may compensate for this difference in solubility, resulting in a brew with equal, if not more, caffeine (although this is unlikely).
The SCAA recommends that a home coffeemaker's brewing water reach the ideal temperature to properly whip up a tasty cup. Specifically, the association says a machine's brew temp should hit 197.6 degrees Fahrenheit within the first minute brewing and not exceed 204.8 degrees. Also crucial is for a coffeemaker to expose its grounds to water between 4 and 8 minutes.
Research proved that people who drank coffee regularly has 57% lower risk of having gouts or the arthritis in the big toe joint. The antioxidant contained in black coffee s known to be able to decrease the insulin and uric acid in the body. For those who have already had gouts, drinking black coffee may relieve the symptom such as painful and swollen joints.
Measure what you are putting into your coffee- If you are brewing your coffee manually, I recommend the process of weighing or measuring the water and the coffee for your recipe. Your additives should be no different. Measure the cream and sugar you put into your coffee. This will get you consistent results through the whole process, brewing to drinking. It would be a shame to meticulously weigh and brew your coffee only to haphazardly eyeball the amount of cream or sugar you add. It is better to be consistent. Measuring your additives will also serve the purpose of showing you exactly how much cream and sugar you are consuming.