Could it be....
I had a friend, now deceased, who was in Europe just after WWII (late 1940s), and one of the things he missed most then was coffee, as it was not a popular drink there, at that time.
He eventually got someone from the States to send him a supply of the
Maxwell-House-Chock-fulla-Nuts-Folgers of the day which he was used to.
To his surprise and dismay the coffee tasted terrible!
He always maintained it was the water; so, I'm wondering about the various reactions in this thread from various regions to the same coffee(s), like the Eight O'Clock: could it be that the water in different areas of the country varies enough to make the taste different?
Now I'd guess if you got up in the morning and made a pot of coffee in NYC and then hopped into the AK Corporate Jet (there is an AK Corporate Jet, right?), then flew you, your coffee beans, and your coffee maker, to SF for a pot of evening coffee, would you notice a difference?
Hard water?
Soft water?
Heavy water?
any thoughts on what differences in the environment affects coffee taste?