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FastFerment Conical Guide

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moors

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Here are my experiences with the FastFerment. I purchased the FastFerment as part of my equipment overhaul. I identified the major obstacles that were preventing me from more frequent brewing. This resulted in some equipment upgrades:

- Larger (8 to 10 gallon) brew kettle with spigot
- Hop basket
- Conical fermenter
- Digital refractometer

My first brew with the FastFerment was a nightmare. It was a 1.060 OG IPA with Wyeast American Ale II. Nothing too complicated. But the yeast flocculated quickly and clogged the collection bulb, valve, and neck. I machined a long plastic wand to poke down through the fermenter to clear the valve. This meant routinely opening up the lid, sanitizing the wand, and poking around inside. I wasted about a gallon of that batch just trying to keep the valve clear. The threads from the fermenter body and union valve leaked, and the threads from the union valve to collection bulb leaked. It was a mess.

The cause of the leaks was plastic flashing in the threads from where the two injection-molded half-shells of the fermenter were heat-joined together. A good manufacturing process would include a step of polishing the threads and removing the flashing. Since they apparently skipped that manufacturing step, I used a Dremel tool to polish the threads of both the fermenter body and collection bulb. This eliminated leaking and the parts fit better.

The next batch was a 1.055 OG APA with Imperial Yeast A20 Citrus and 9oz of hops. Most of the kettle hops were filtered out with a bazooka mesh. I later added dry hops in a muslin bag. The trub immediately clogged the conical neck. It was clearly clogged because the collection bulb did not have the proper progressive color change with sentiment. I was afraid the collection bulb would grow stale and possibly infected, so I removed and cleaned the bulb, then cleared the clog with my plastic wand. This repeated over the next two or three weeks. Overall, I wasted over a gallon just trying to keep the bulb from going stale. I was becoming tired of the routine: standing on my countertop over the fermenter with the long plastic rod, clearing a plug from the valve body.

The third batch was a 1.050 OG Hefewiezen with Wyeast 3068 Weihenstephan and 1oz of hops in a hop basket. I started the process with the valve closed. After the cold crash, I opened the valve to clear the trub from the bottom of the conical before pitching yeast. I dropped a hydrometer into the fermenter so I could watch gravity. After a week, I cracked the valve open a little again to clear the dead yeast at the bottom of the conical. No valve clogs!

My recommendation is the following practice:

- Assemble fermenter with valve closed and without collection bulb.
- I do hop additions in the boil using mesh basket to control particles. This is a key part of my method. I removed the bazooka screen.
- After boil, cool wort (I use an immersion coil).
- Dump the entire kettle into the fermenter (instead of whirlpooling the cold break trub in the kettle, I now dump the whole thing into the conical).
- Let the wort settle in the conical. When you can see substantial sentiment at the bottom, open the valve and drain the sentiment. This is the cold break trub. I found using the conical to concentrate cold break trub is more efficient that whirpooling in the kettle. I waste a lot less wort.
- Oxygenate and pitch yeast. Partially fill collection bulb with sanitizer and install. Keep valve closed. This is to protect the bottom of the valve from contaminants while sitting.
- Check back every few days. You’ll see a lighter-colored yeast cake followed by darker sentiment. These are particles and dead yeast that will clog the valve if left unchecked. If the bottom of the conical has enough dark sentiment, remove the collection bulb and open the valve to drain 1-2” of trub. Close the valve and replace the collection bulb (which is still partially filled with sanitizer solution).
- After a week, I usually sanitize a plastic brewing spoon and give it a good stir. This rouses the yeast to finish the fermentation, and also allows the heaviest particles to settle at the bottom of the conical. After a few hours of settling, I purge these out (about 1 to 2”), always closing the valve and replacing the collection bulb partially filled with sanitizer solution.

So my strategy is to never use the collection bulb, except to protect the bottom of the valve. This method has worked far better now. Here are some benefits of this method:

- Less waste when transferring from the kettle to the fermenter. My previous method of whirlpooling always left a lot of wort in the kettle along with the trub.
- The hop basket eliminates the need for the bazooka. I hated the bazooka. It would clog, snag on my grain bag, get in the way of the immersion chiller, etc. It was a coarse mesh, which let a lot of smaller particles through. Glad to see it go.
- The hop basket has a much finer mesh than the bazooka. It vastly reduces the amount of kettle cold break trub. There’s a whole lot less gunk now.
- Letting the cold break settle in the conical concentrates it and makes it more efficient and easier to remove. I probably waste a third as much as before, because it’s much more concentrated out of the bottom of the conical.
- There’s no need for the collection bulb unless you are intentionally harvesting yeast. Since I don’t use the same yeast twice in a row, I use fresh yeast for every batch.
- If you want to harvest yeast, this method is excellent. It keeps the valve clear and the heaviest trub purged. You’re left with the fluffiest, most viable yeast. Wait until your FG is getting stable (about 1.5 weeks). Purge the darkest trub from the valve (usually about 1-2”) and discard. Attach the collection blub and collect 3-4”. This will be the healthiest and most viable yeast.
- Keeping the valve closed eliminates the possibility of the collection bulb’s threads and gasket leaking. The only source of leaks is the threads between the fermenter body and union valve. If you’ve polished the threads, you shouldn’t experience any leaking.
- Enjoy it now! No siphoning from carboys! No bottle brushes trying to scrub the krausen crust from the interior of carboys!
 
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I wanted to post a similar thread once I brew with my fast ferment. I will once I have some more notes. I will say this, I read reviews of leaks. You need to do as the manual states and tighten all fittings prior to sealing them. I tightened all fitting down then rebuilt and used a lot of thread tape for all connections. Tested with 6 gal of water. No leaks. I also drill and threaded an additional port on the collection ball. This port has an extension with a small valve. I use this to vent the collection ball so air does not bubble thru the wort when reopening the collection ball valve. I do plan to harvest yeast. I will repost when I brew in the fermenter but I have two kegs currently and need to get one knocked out first.
 
My experience with the FastFerment is a bit different. Not to challenge what you experienced, but to offer my experience, here are some comments:

"My first brew with the FastFerment was a nightmare. . . . the yeast flocculated quickly and clogged the collection bulb, valve, and neck." I suspect you had a bit too much trub to deal with. I found that using pellet hops leaves a lot of trub that can plug things up. I have switched to whole hops in mesh bags for this reason. While whole hops are much bulkier, they don't contribute to a lot of trub that will clog things up.

"The threads from the fermenter body and union valve leaked" Following the directions, I put at least 5 or more wraps of teflon tape on each connection. From the git go I haven't had any leaks.

"A good manufacturing process would include a step of polishing the threads and removing the flashing. " I agree that the molding process leaves a lot of excess plastic. The teflon tape worked for all of threads, but I found the lid to be a challenge. I had to sand it down quite a bit to get a level surface so that the screw-on lid would seal. I also made some additional seals out of thin foam packing material. Just used the provided gasket and cut out a couple extras. Made the fit much tighter and leak proof.

"I later added dry hops in a muslin bag. The trub immediately clogged the conical neck." I'm thinking you used pellets hops? I haven't had any problems with clogging when I use whole hops in muslin bags.

"I was afraid the collection bulb would grow stale and possibly infected," Don't understand this concern. You can either close the valve and isolate the collection bulb, so no problem. Or leave it open. Either way, the collection bulb won't cause anything to go stale or get infected any more than using any other type of fermenter.

"My recommendation is the following practice:- Assemble fermenter with valve closed and without collection bulb." This is ok, but I don't see any advantage. if the valve is closed, the collection bulb is isolated from the wort.

"Let the wort settle in the conical. When you can see substantial sentiment at the bottom, open the valve and drain the sediment. " I have tried it both ways - valve left open and valve left closed. Both work - keep valve open and let the bulb collect; or - close the valve and open later to drain the trub.

"So my strategy is to never use the collection bulb, except to protect the bottom of the valve." The collection bulb is no protection for the bottom of the valve, unless you have strange stuff floating upwards from the air in your brew room.

"There’s no need for the collection bulb unless you are intentionally harvesting yeast. " Yes, you can use the collection bulb to harvest yeast. But you can also use it to collect trub. Both ways work.

"Attach the collection bulb and collect 3-4”. This will be the healthiest and most viable yeast." Agree. If you have first removed the trub, the next layer is yeast and the collection bulb is a great way to collect it.

"Keeping the valve closed eliminates the possibility of the collection bulb’s threads and gasket leaking. " Better yet, just use enough teflon tape and you won't have any leaks.

"Partially fill collection bulb with sanitizer and install. Keep valve closed. This is to protect the bottom of the valve from contaminants while sitting." This does not compute. The sanitizer doesn't touch the bottom of the valve. And, unless the air in your brew room is contaminated, just sanitize the bulb, put it on and leave it. It won't cause any problems.

"Enjoy it now! No siphoning from carboys! No bottle brushes trying to scrub the krausen crust from the interior of carboys!" Yes! That is exactly why I like FfastFerment.

Good luck with your brewing!
 

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