Grinders
Does Grinder Heat Affect Coffee?
Does grinder heat make coffee taste worse?
For most home brewing, grinder heat is minor unless you grind many doses back to back. It matters more in busy espresso workflows where burrs and grounds stay warm long enough to change flow and aroma.
What to Check First
Let the grinder rest if shots speed up during repeated grinding.
Single dosing reduces heat buildup.
Clean retained grounds if flavor tastes stale.