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.
https://www.psu.edu/news/agricultural-sciences/story/microwa...
I leave it on the counter to extract, and store it in the fridge.
When you want to go low or no plastics, there are many choices now.
https://www.harvardhealth.org/healthy-aging-and-longevity/wh...
> People younger than 60 who drank one to four cups of coffee, particularly filtered coffee, had lower rates of artery disease and death
> The study is observational and doesn't prove that filtered coffee is healthier than unfiltered coffee
> a cup of unfiltered coffee contains 30 times more diterpenes than a cup of filtered coffee
This sentence in particular is kinda meaningless without specifying the specific amounts and what they mean. For instance, saying "an unfiltered cup of coffee contains 30 times more salt than a filtered cup" would not mean much if one contains 1 ug and the other 30ug, but would be very significant if it was e.g. 1 vs 30g
For all cause mortality among people without cardiovascular disease, they split into groups of men and women and then further into groups of no coffee, filter only, both brews, and unfiltered only.
For both men and women without preexisting cardiovascular disease, both brews had the lowest all cause mortality. I'd expect that "both" would be between "only filter" and "only unfiltered". It isn't because "both" is a separate population from the "only" groups, indicating that confounding may be substantial here. Nevertheless, for people without preexisting CVD, all but one of the confidence intervals for the hazard ratio is entirely below 1, and the unfiltered for men includes 1. I wouldn't draw any strong conclusions from this.
My recommendation would be to just drink your coffee, take your blood pressure regularly to see if you're hypertensive, and check your cholesterol with labs if you're regularly hypertensive.
https://www.medicalnewstoday.com/articles/coffee-and-cholest...