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The dry coffee grounds contain significant amounts of potassium (11.7 g/kg), nitrogen (27.9 g/kg), magnesium (1.9 g/kg), and phosphorus (1.8 g/kg). [5] The quantity of caffeine remaining in used coffee grounds is around 48% of that in fresh coffee grounds. [6] There are significantly less tannins in used coffee grounds than fresh coffee grounds ...
I've only ever heard "coffee grounds", but Google ngrams shows that "coffee grinds" has bumbled along at a very low level since about 1960 (the occasional appearances before are probably accidental instances of this sequence of words with a different syntax). Since about 1986 it's taken off (though still far lower incidence than "coffee grounds").
Coffee extraction occurs when hot water is poured over coffee grounds, causing desirable compounds such as caffeine, carbohydrates, lipids, melanoidins and acids to be extracted from the grounds. The degree to which extraction occurs depends on a number of factors, such as water temperature, brewing time, grind fineness, and quantity of grounds.
And although there’s a built-in grinder that will automatically measure and grind beans after each drink is selected, users can opt out of the grinding portion and just insert ground coffee instead.
Brewing considerations include the fineness of the grind, how the water is used to extract the flavor, the ratio of coffee grounds to water (the brew ratio), additional flavorings such as sugar, milk, and spices, and the technique to be used to separate spent grounds. Optimal coffee extraction occurs between 91 and 96 °C (196 and 205 °F). [114]
Esophagitis, esophageal varices, gastritis, cirrhosis or gastric ulcers for example, may bleed and produce coffee-ground vomitus. When unaccompanied by melena, hematemesis or a fall in hemoglobin with corresponding urea rises and creates an unstable reaction, and other causes of coffee ground vomitus need to be elucidated; for example, gastric stasis, bowel obstruction or ileus, that can cause ...
From a great cosmetic fix to a new tool for your garden, coffee grounds have more to offer than you might think. You may be shocked by all of the great ways you can use them. You may be shocked by ...
Frozen beans will grind the same as unfrozen beans, but refreezing beans alters the quality of the coffee. [4] Coffee grounds are stored in metal containers that are non-reactive [9] airtight ceramic or glass containers, like roasted beans. Due to increased total surface area of coffee grounds, the grounds go stale in days, rather than weeks ...