https://www.harvardhealth.org/healthy-aging-and-longevity/wh...
Make a lot to only use a couple paper filters a week. Most days, your coffee is already ready in the fridge, no wait (unless you wanna microwave it or something).
Make it really strong and dilute with a lot of [non-dairy] milk to go easy on the stomach.
I can hit the temperature I want every time on a Bosch microwave from 80s which has two power levels and a rotary, mechanical timer.
When you want to go low or no plastics, there are many choices now.