OK, I am reluctant to jump in as many may see me as having an 'agenda' so I will do the Hawaii Five-O "Just the Facts, Maam, just the facts". The product under discussion is a fine alkali product with limitations. For beer cleaning the main challenge is it has no chelators. Chelators are chemicals which pull mineral soils into solution and keep them there. Over time if this product is all you use you WILL develop beer stone (same reason only 90% of your krausen ring came off).
In defense of our product, it was stated that "PBW is the same thing as oxyclean." No, it is not. Actually the chronology is the other way around although the comparison is still weak. Originally developed for a regional brewery whose name you would immediately know, PBW was the FIRST powdered cleaner able to harness Oxygen as a solvent without being corrosive. PBW carries numerous US Patents which still protect its unique formulation. PBW was built specifically for the brewer and is not something brought into brewing but originally marketed for your laundry.
Let me share a relevant email I got from a gent I met at the Oakland AHA NHC. I usually blot out the name of the other product, as you have seen this elsewhere, but will leave it in here in light of this discussion:
From: Denny Conn
Sent: Wednesday, July 01, 2009 1:32 PM
To:
[email protected]
Subject: You got me!
Hi all,
I met Jim at the recent NHC in Oakland and he gave me a great explanation of the benefits of PBW. I'd used PBW many years ago, but over the last 6-7 years I had switched to Oxiclean as my sole cleaner for my homebrewery. I was very happy with the performance of Oxiclean and didn't feel that I could justify the extra expense of PBW for my hobby. Jim encouraged me to try cleaning stuff with PBW that had been cleaned in Oxiclean previously. I did that recently and I have to tell you that I'm amazed and pleased with the results! In particular, there was one beer line I had that had heavy beerstone in it, to the point that I no longer used it. Repeated Oxiclean soaks hadn't cleaned it, nor had other cleaners I'd tried. After a 2 hour soak in PBW, the line was completely clean and has gone back into use! I use buckets for fermenters, and they all looked clean to me, but when I recleaned them with PBW I was amazed to see how brown the water I used was after cleaning!
I just had to let you guys know that I'm now a confirmed PBW user and I plan to let anyone who asks know about my experiences. Thanks for all of your great poducts.
-------------->Denny Conn