Does seasonality affect grinder settings

[wkwan]

Hi all,

I think my problem has been solved, but I just want to confirm with others.

I live in New York and temperatures have dropped from the 80s in the last week or so to high 50s at night. I noticed this morning that when I was performing a shot that it just gushed out blonde, so I did it again and really tamped harder than normal, same results.

So being a noob, I cleaned the screens on the machine, inspected the gasket and tried another shot, same thing. I noticed that pressure on the guage was really low when performing a shot, so my attention moved to my mazzer grinder. I pretty much cleaned the grinder, recalibrated and then performed another shot, same results.

What I didn't do and now I know is to adjust the grinder for a finer grind which resulted in a slower and more full shot.

The question is because of the temperature drop recently, this does affect the grind of the beans and needs to be adjusted correct?

Thanks

[LDT]

In my experience, the coffee bean and to a lesser extent, it's age since roasting, makes the biggest difference. I am assuming you live in a heated area where the temperature is relatively stable.

[rhinoevans]

Coriolis effct and rotation of the earth, possibly.