The best fermenter for top cropping yeast

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corncob

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In case the link doesn't work, the best fermenter available for use with top cropping yeast is (in this man's humble opinion) the vittles vault part number 4330, described as "gamma seal" with a volumetric capacity of 30 liters.
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That's mine inside my fermentation fridge. I've used this to ferment about a dozen batches of beer since returning to the hobby. I've used a fermzilla all-rounder extensively as well. I find that the fermzilla is the medicine when I want to serve from the fermenter (not re-pitching the yeast), or when using a yeast that is not a top-cropper--in that case I transfer the beer off using Co2 and save the yeast until brew day, then scoop out 3/4 and run the wort right on top of the remaining. I do not know how many times this can be repeated, but it sure works well for 3 or 4 consecutive brews.

But the vittles vault:

Remove the "gamma seal" female threaded lid adapter and throw it away. It is not gas-tight and is full of nooks for bugs to live in. Note that the vessel is not square, but octagonal: drill a hole for a plastic faucet in the corner as near the bottom as possible. Cover the top opening tightly with plastic wrap after filling. Replace after harvesting yeast. CO2 will find a way out, and there is no need to sanitize. Oxygen will enter as well, but if you are using top fermenting yeast and knocking the beer into a keg as soon as possible anyway, it will be so little that it won't matter. At all. But remember that this is essentially open fermentation. The American homebrew mantra of "more time in primary" will not apply well here at all. Think about the English method of racking to a cask and priming as soon as final gravity is reached. The time in cask (2-3 weeks in a corny for us) will take care of the remaining green flavors and produce a clear and carbonated beer.

Taking a gravity sample is dead easy. Washing and sanitizing is dead easy. The advertised dimensions are 14in x 14in x 13in high. This thing fits in most large mini fridges without a collar or any modification. It will ferment 7 gallons. It costs $36 as of tonight. It's my favorite piece of homebrew gear of all time.
 
I can't get enough. If every piece of homebrew gear was this perfect, brewing would be so easy that one might lose interest.
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Years ago when I was a lurker, I saw members on here constructing soda-bottle blowoff-capture devices for top-cropping while many others did so by ladling krausen with the lid off. I'm interested, but have never tried it. Is there any benefit of one over the other?
 
When I started using fermentation gas to purge my corny kegs I had to come up with a solution to keep krausen out of the gas lines lest they get plugged up and cause drama. I came up with a PET jug with a pair of 1/2" threaded nylon barb fittings in the lid to hook up to a pair of carboy caps, and with a PTC port for EVABarrier gas lines that hook to bulkheads in the back of the fridges, that eventually lead to QDs where the kegs get parked.

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This all works quite well to keep the gas lines clean, but to optimize it for capturing yeast to re-pitch I would add short down-tubes inside the carboy caps that would reach to an inch or two above the wort level...

Cheers!
 
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