Cabonation - bubble size?

[r2eng]

Searched the forum, found no answers.

Why do some of my beers have smaller carbonation bubbles, while others have large ones? I know that size isn't everything (yeah, right), but I just thought it was odd.

I always force carb in a keg, and usually do 48 hours at 30psi, and then 12 psi for serving. Even after weeks, in the keg or bottled from the keg, same variance.

?

 

[carnevoodoo]

It has to be due to the proteins that allow the formation of bubbles in the beer in question. Probably the same tye of proteins that allow for head retention.

 

[r2eng]

I have no doubt you are right. It makes sense.

I also did a quick-n-dirty experiment: Pour the same beer into a short "on-the-rocks" glass, pint glass and pilsner glass.

The taller the glass, and "deeper" the beer, the larger the bubbles! Makes sense... the bubbles grow as they move up the glass.

Hmmm... feeling silly right now. Maybe another beer would help.