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.
Since Liebeck, McDonald's has not reduced the service temperature of its coffee. McDonald's policy today is to serve coffee at  80â90 Â°C (176â194 Â°F), relying on more sternly worded warnings on cups made of rigid foam to avoid future liability, though it continues to face lawsuits over hot coffee.