Mining. In cryptocurrency networks, mining is a validation of transactions. For this effort, successful miners obtain new cryptocurrency as a reward. The reward decreases transaction fees by creating a complementary incentive to contribute to the processing power of the network.
It matters because the actual coffee flavor is extracted from grind better at higher temperatures. I'm not a scientist but I trust those that have done the research and they say that the optimal temperature for hot water in a coffee pot is between 195-200 degrees or just a little under boiling.
The specific heat of water is 4.18 J/(gÂ·Â°C). For example, consider a chemical reaction which occurs in 200 grams of water with an initial temperature of 25.0Â°C. The reaction is allowed to proceed in the coffee cup calorimeter.