Originally Posted by
CPH-Flyer
There is nothing wrong with topping up in a glass that already has some champagne in it. You should just tilt the glass while pouring.
A random Internet picture of a pretty good technique.

I see where his fingers are and the tilt of the flute. But does it really make any difference? I didn’t do that when I bought that bottle for a taste test. Maybe that’s why that one isn’t my favorite? 😂
Do they use regular wine glasses on JAL for serving champagne? I hope not.