head retention

been a few post recently on this-some perhaps beer related and others equipment related.

I came across this from weyermann, and curious what others think of beer PH being one culprit for poor head of beer:

“Finished beers with pH-values at or below 4.4 have
greater foam stability and head retention than
those with values of 4.5 and above.”

Yep, that’s definitely a factor.  So is this…http://byo.com/stories/article/indices/35-head-retention/697-getting-good-beer-foam-techniques

pretty interesting information Denny-thanks.