The most helpful fermentor ever invented just got even better. Less effort. Better, clearer beer. Don’t just cut out the hassle of cleaning, cut out siphoning altogether! Porting this revolutionary fermentor makes transferring as easy as the turn of a valve. No extra equipment, no extra cleaning, just a sanitized fermentor.
The Siphonless Big Mouth Bubbler® isn’t just easier to use. It’s better for your beer. Fight oxidation and contamination by keeping your fermentor closed for transfers. Never open the lid to insert an auto-siphon, just turn a valve and you’re set. Best of all, you’ll have clearer beer. Gently rack liquid from the spout into secondary without disturbing the trub.
Make your brew day easier and your beer better with the siphonless Big Mouth Bubbler®.
- Ported Big Mouth Bubbler® Plastic Fermentor
- Single Port Universal Lid*
You may also need:
- An airlock (3-piece or S-Bubble)
- A Small Universal Stopper (Drilled or Solid)
- A Harness
- A blowoff hose
- A Dual Port Lid
BIG MOUTH BUBBLER® Product Specifications: Capacity: 5 gallon 6.5 gallon SKU: U41950 U41965 Weight: 3.4 4 Height (w/lid, closed): 22" 23" Diameter: 10" 11" Mouth: 5.5" 5.5" Fermentor Material: PET PET
- Details & Instructions
3.9 / 5.0100 ReviewsDon't waste your money. Lid pops out all the time, dry or not.After using duct tape to hold down the poorly-designed Universal Lid, which won't stay down even if everything is bone dry, I have resorted to using to 5 pound bricks. This is ridiculous! Whoever designed the lid shouldn't lose their job, but the person who approved it for market should. When I first got my Siphonless Big Mouth Bubblers, I thought there were parts missing for the lid, since everything I had seen was a screw-on lid. I can totally understand why the original lids leaked. What I don't understand is why they didn't design the universal lid to screw-on like the old one?!!! More importantly, this is a KNOWN ISSUE. It's all over the internet - people everywhere performing DIY fixes on these lids, taping them down, putting weights on them. SOo why are they still being peddled on the market like they are some kind of revolutionary product. Well, it was certainly a revolutionary way for me to lose money! I don't have money to burn on stuff like this, so I'm STUCK with these until I can afford something of quality. Avoid this product at all costs. Stick with your buckets until you can afford better! John Salvatore - PittsburghAugust 7, 2016Response from Midwest SuppliesWe guarantee satisfaction with our products and service customer service will contact you. That stopper like lid seems to work great for many, sorry it is not working for you.November 2, 2016Midwest SuppliesNever had to worry about a lid before....The lid won't stay on. I don't mean it can pop off during a vigorous ferment. I mean brand new, bone dry, straight out of the box and the lid won't stay tightly seated. Wish I would have tested it before pouring in the wort. Ransack through the packaging thinking I was missing a part to screw it down. Had to it taped down now. Don't buy this.Tape... serious had to use electric tape.February 9, 2017Love the Big Mouth Bubblers!To all the people that can't get the lids to say on. I had the same issue, my first brew. After that, I learned the lids must be dried thoroughly. Take off the rubber gasket, dry it completely, then dry the upper inside of the bottle. Then use a blow off hose with a stopper, and it works perfectly. I'm several batches in, and haven't had any issues, once I started drying the lid, gasket, and inside the top. Cleaning is a piece of cake. So easy versus a glass carboy. Easy to carry as well, just make sure it's dry on the outside. Love them! I've got 3 now!March 11, 2017Not the game changer I was hoping for.I went back and forth over if this was something I needed or not, but went for it as I was tired of getting to all those hard to reach places on my glass carboys. After receiving, I used and has issues with lid popping off every time I turned my back on it. Come to find this is a common issue that no one seems to be doing anything about. I resorted to the bricks on top of carboy method.
On first use, during cleaning the inside got all scratched up. I was using a sponge - nothing too abrasive - and when drying it I notice scratches on the inside. I'm now apprehensive to use in the future as scratches may harbor unfriendly critters. What is the point of reaching inside to clean the thing when it scratches so easily?
Just overall not happy with it, I though this would really make the brewing process easier, but added more hassle in the end and I feel like I have thrown my money away. With 2 small children, I don't have a lot of disposable income (or time) at the moment and the disappointment in this product has kind of killed my buzz on homebrewing in general, which to me is its greatest fault of all.
Bummer, I was hoping for a lot, maybe my expectations were too high.April 7, 2017Purchased
6 months agoGood stuffGreat products just wish it was free shipping over $50 like most online retailers do.February 11, 2016Good Bye siphon!I love the big mouth bubblers with the spigot. Racking is simple... just sanitize the secondary and a very short hose. Then attach to the spigot and get every drop from primary to secondary with no siphon needed. With the spigot on the secondary, same easy process to transfer from secondary to bottling bucket or corny keg. All my future primary and secondary fermenters will have a spigot and I'm tossing the siphons!August 5, 2015Good for the priceAfter have a few mishaps with glass primarys, I decided to give this a try & keep glass only for secondary. It's a nice plastic fermenter and the siphon makes transfer quite easy. It cleans up easy, but I'd recommend removing the bubble pattern. One big caution to users though (which I learned the hard way), FULLY REMOVE & CLEAN THE SIPHON EVERY TIME. Even though you dont see it, little microbes stick on the treads under the o-ring. If you don't remove the siphon, you won't get this fully clean and an infection can take hold.May 18, 2016Love itThe big mouth bubbler is great. Easy to clean, add and remove dry hops, etc. The only negative is that the faucet seems a little flimsy; I haven't had problems with it but have been really careful not to knock it when moving the fermentor around.July 29, 2016Needs to include the Stopperworks as intended, but need to get a stopper if you have been using buckets, the stopper is completely different.January 9, 2016high-qualityI was skeptical at first with them being plastic and having had some bad reviews that were hidden on other websites but ever since I've got them I've done about 4 brews and boy have they made my life easier. They are made out of high-quality material and great they have not warped in any way. I bought 2 and am about to buy two more. Also dry hopping in them was a breeze to get in and out with zero hassleMay 17, 2016
- Customer Q&A
Browse 15 questions Browse 15 questions and 44 answersAre there marks on the Big Mouth to indicate gallons, similar to the fermentor buckets?BEST ANSWER: The Big Mouth Bubbler has a line to mark each gallon of volume.kombucha question, is this plastic stable to the low pH of kombucha fermentations
?BEST ANSWER: The Plastic is Food Grade PET and will hold up to any pH level reached during fermentation.How is spigot sanitized to drain beer after fermentation?BEST ANSWER: I assume you want to bottle the primed beer using the spout but are worried it might be contaminated.
Just flow a few ounces of brew thru it to flush it out before bottling.
Or your first bottle is the only one that MIGHT get contaminated.What size tubing fits the spigot?BEST ANSWER: The 3/8" ID Siphon Hose fits it.What is the overall footprint (including spigot) for this? I'm building a cabinet for my fermentors and I'm trying to find out how much space this will take up.BEST ANSWER: 11" bottom and 12 3/4" front of spigot to back.WHAT DO YOU USE FOR HANDLES?BEST ANSWER: The are no handles on the vessel. Like the glass carboys, which are much heavier, I carry the "big mouth bubbler" with two hands gripping the bottom and pressing it against my body for stability.The lid staying on seems to be a common theme in these. A shame really since I wanted to get out of a bucket.
Has this been addressed/corrected yet?BEST ANSWER: fermentation don't have that problem because I have the hard plastic screw on lid. Though a friend has what you are talking about. We use our big mouth only for 1st and second step fermentation, degasing, stabilizing and clarification and bottling. The big mouth is really great when you have wine skins, I leave them in the wine until I degas.
As for fermentation, our solution for first stage fermentation is to not use the lid and bung or air lock. We have been using a clean paper towel and attaching with a rubber band, allows co2 to escape and nothing gets in your wine. When the wine gets down to 1.02 to 1.01 (second stage fermentation. We secure top along with a bung and air lock. Works well and no problems with the lid being pushed up by the co2 gasses. I hope this helps you. MikeI got one of these in May of last year; will it work with the Depth Charge or is the EVO 1/2-thing an issue? Thank you.Siphonless 6.5 Gal. Big Mouth Bubbler® - Ported Plastic FermentorBEST ANSWER: The depth charger will work with either the plastic or glass BMB as long as you have the lid that came with the depth charger as it's different than the standard lid on the bmb.They seem to have an embossed design. Does this make them harder to clean?BEST ANSWER: The Big Mouth Bubbler has "bubble" surrounding the plastic jug. The logo is a sticker on the outside of the jug.
I have used them for both primary and secondary fermenters and I have not had any problems cleaning them.
My habit is to rack from primary to secondary and then immediately clean out the primary. I start by adding water and swirling the jug to loosen up the trub in the bottom.
After cleaning out the trub I then put a little dish soap in the jug and then use a dish scrubbing brush to clean the interior of the jug. Then I rinse it out really well and finally slosh the inside with StarSan sterilizer.
So far I have brewed over 6 beers and 2 ciders this way and haven't had any issues with clean up. It is super easy.
Hope that helps.Wanted to use for wine making, is there a way to release pressure?BEST ANSWER: The top of the carboy has a lid with a hole for a stopper; a person can remove the stopper and airlock from the lid when you are transferring the liquid out of the carboy via the spigot on the side. If it is not removed, when a person began transferring the liquid out it could draw the liquid from the airlock back into the carboy, this should be avoided. - Mike W, Midwest SuppliesIt would be helpful to know the dimensions of the 6.5 gal bubbler particularly the height! I might be interested in the sale if it would fit into my fermentation coolerBEST ANSWER: It is just under 23" without a stopper or bubbler. That's to the top of the lid from the floor, outside measurement. I ferment in a former mini-fridge keggerator and it fits fine. I use a stopper, hose and a blowoff bottle, not a bubbler.The previous answer to a similar question was cut off. The spigot is above trubb line? So u can transfer to keg/bottling bucket without siphoning?BEST ANSWER: That's the idea! The settled sediment will be below the spigot level, so that you can then gently pour the beer out from the spigot to another vessel, via some plastic tubing stuck onto the spigot. - Mike W, Midwest SuppliesAre there also marks for in liters? A lot of malt extracts use liters. Cooper, Mr. Beer, Munton's, and Black Rock.BEST ANSWER: Sorry, there are no graduation marks for liters, but it would be easy to add them with a sharpie.You are always going to lose some beer to the trub, but the spigot is above the trub line. How much beer is lost after transfer, assuming you are not tipping the fermentor. Or more precisely, if the fermentor is filled to the 5.5 gallon mark, how much beer would actually be transferred out into the keg?BEST ANSWER: You'll leave about 2/3 of a gallon behind. So, at the 5.5 gallon mark, you'll get a little less than 5 gallons out.Can this be used in wine making?
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