Why does instant coffee dissolve but regular ground coffee does not?
In: Chemistry
Regular coffee: chunks of ground-up beans. They don’t dissolve because…I mean…because beans don’t dissolve. Instead, water passes through them, extracts a bunch of molecules, then comes out as coffee.
Instant coffee: take already-made coffee, and magically evaporate all the water out of it. A bunch of solids will be left behind. Since they were already dissolved in the water to begin with, you know that they must all be water-soluble. Mix them back into water, and they dissolve and turn back into coffee.
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