Should be no issue at all. I was apprehensive about the hand grinder and brew scales but it was all fine.
By the way, I work at MacIntyre Coffee on Hoxton Street every Saturday. If you'd like to come down for a coffee that'd be great.
Conceptually interesting as a store and also, I'd like to think, good coffee.
Wait, you used your hand grinder, brew scales and aeropress on a plane?! I'm in awe of your dedication to good coffee.