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For what it's worth, I don't actually agree with the idea that the use of beads removes all yeast character from the equation, and I think my experimental results demonstrate that. Certainly it's different than a baseline ferment, but it's not non-existent.

Yep! Check out post #199.

Awesome. Keep the comments coming! I'm mostly just flying by the seat of my pants here, so I'm always interested in those with actual experience. Personally, if it works, I like the idea of reusable tube runs/canisters of yeast. It sounds tremendously convenient.

Something like this? http://loudmouthbrewer.wordpress.com/2013/01/02/loudmouth-brewer-mash-tun-10-gallon-cooler-conversion/

I'm still not really following you, I'm afraid. Does the cooler have a bulkhead and ball valve? What are you trying to do to the lid?

Are you looking for a list of other things you'll need?

I just used sanitary utensils and vessels throughout the process. Nothing fancy. As far as acid washing goes, there are threads that go into plenty of detail, but I just mixed up some starsan and soaked the beads for 15 minutes. I didn't write down the concentration I used, but I calculated it...

Just to reiterate what I said in the Mupor thread, I know absolutely nothing about their process and likewise I have absolutely no reason to believe that they and I are doing the same thing. This thread should neither confirm nor deny any of their claims.

The machinists and the pilots win for wow factor, but I say we all help the salmon-guy and the avocado-guy to organize a massive HBT feast! The only question is...what will we drink? :D

Mine actually mostly sank initially, but then started floating during fermentation. Once fermentation ended, they sank again. A small proportion got air bubbles stuck in them, which left them floating.

Volunteer? This is court-ordered community service!

Thanks folks! I went with "Confronted all the dope fiends", and nobody objected. It seems unlikely that they would have in any case, given the context and audience, but I'm glad I've got HBT to back me up on all my 90s trivia needs! :mug:

You can do this with a direct fire RIMS, too. You just need to keep the temperature probe down in the space under the false bottom.

Okay. So here's the thing. The universe has somehow conspired to make the lyrics to Vanilla Ice's 1990 hit "Ice Ice Baby" important to my professional life. I'm not proud of it, but there it is. The trouble is, I can't figure out one of the lyrics. Specifically: Jumped in my car / Slammed on...

If it wouldn't go through a coffee filter, it definitely won't go through this in any reasonable time. I suspect fermentation is not particularly limited by permeability/surface area, but the beads have the roughly consistency of dried silicon caulk.

Oh, I understand what you mean. Alginate-immobilized yeast is sometimes used in a similar way for biofuel generation. It might work, though I suspect not at 6". What sort of advantages do you see over, say, pumping the wort through a column of beads? I'd be a bit reluctant to have five...

I'm not sure I follow. What would the drip system do?

I really appreciate the offer. So many people have reached out to help with this experiment in various ways. It speaks volumes on the community here. There are a number of interesting questions here, but I've decided to wait on any real testing until I've got the protocol rounded out a bit...

Yeast stand up to acid relatively well, which is the principle behind acid washing.