Origin, varietal, altitude, and tasting notes on a coffee bag work best as comparison clues, not guarantees of how it'll taste.
When coffee tastes off, working through variables one at a time - grind, temperature, time - finds the cause faster than swapping beans.
The same espresso shot changes completely in strength, texture, and sweetness depending on whether milk, water, ice, or cream goes in.
Caffeine is easier to manage by tracking your total intake across the day and your own reaction, not by counting cups alone.
