Espresso around 70. A cup of drip around 100. You need like a fistful of ground to make a single shot of E but barely a spoonful for a cup of brew. Ya’ll?
In: Chemistry
I will add that caffeine is not super soluble in water so it takes some time for it to be extracted. The longer contact time in percolation extracts more caffeine from the ground beans than the faster espresso coffee method.
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