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 / 5.0149 ReviewsI like it. Only used it once but it was nice. Even though I still had to rack the beer into a bottling bucket because I had to add the sugar for carbonationSeptember 10, 2018Purchased
2 months agoBubblerWorks great. Easy to clean. Makes transferring to secondary a breeze.September 8, 2018Purchased
2 months agoPathetic!No reflection on Midwest as they have been great!
The company that makes these actually paid someone to redesign the old lid and my grandmother who has been dead for 20 years could do a better job! The lid WILL NOT stay down! Here are two suggestions for dealing with the lid.
1. Get a 10 pound metal weightlifting plate and position it on the lid and put your blowoff tube or airlock in the hole.
2. Use plastic wrap (like you use in the kitchen) and as you wrap it pull super tight to stretch it and occasionally flip the roll downward to hold the lid down.
I also think the plastic is a bit too thin.
If you can deal with the lid it is otherwise a decent fermentor.LifeHack for the very poor design of the lid. This or a weight are the only things that work.August 26, 2018Purchased
6 months agoThe only way to fermentLove the ease of cleaning, no more carboy's for me ever. No fuss, to transfer from primary to secondary to bottling. Should have bought these guys years ago. I have 4 so far, NO REGRETSAugust 3, 2018Purchased
3 months agoi regret buying thislisten to the reviews. the lid will pop off with an active fermentation. i used weights and ratchet straps to secure it. also the valve at the bottom during kegging picked up enough sediment that it clogged my kegs dip tube. overall the entire thing has been a pain.July 2, 2018Purchased
4 months agoResponse from Midwest SuppliesI'm sorry to hear about your experience with the Big Mouth Bubbler. A member of our team will be reaching out to you shortly.July 7, 2018Greggory GGreat fermentor, terrible lidsI recently bought two of these, hoping that the reviews about the lid popping off were exaggerated or that the lids had been redesigned, however both fermentors I received have lids that pop right off as soon as you tighten them on. When they're dry they definitely stay in place better than when they're wet, but they still pop off no matter how much I force them on. I managed to work around the issue by buying several small spring clamps (bought a package of 4 of them on Amazon for about $5) and using 2 clamps on each fermentor is enough to keep the lid tight throughout fermentation.
The fermentor itself is great though. Easy to clean, and the port on the bottom saves a ton of time when transferring to a secondary, bottling, or kegging.June 21, 2018Purchased
4 months agoSatisfied with my siphonless bubblerThe siphonless bubbler is really nice. It saved us quite a bit of time not having to siphon and kept a lot of sediment out of the beer saving more time and making a better brew in the end. I'm pretty new to brewing but would recommend anyone getting started to get these bubblers. My brother and I brew together and these bubblers are easy to use, the large mouth makes pouring from the brew pot to bubbler easier, and cleaning is also a piece of cakeJune 20, 2018Purchased
4 months agoExtremely happy with this!This thing is great
Makes adding hops so easy.
Heard complaints about the lid not sealing but the trick is to make sure the lid seal and opening is dry!
"Slippery when Wet" applies here!
And... transferring to bottling bucket is a breeze.June 18, 2018Purchased
4 months agoUsing it for the first time today for bottling. I think it will work perfect, and I won't waste any great juice.June 12, 2018Purchased
5 months agoThe lid didn’t seem like it fit well. I will have to try playing with it to see if I can get it to fit better. I will not buy another one if I can’t.June 11, 2018Purchased
5 months ago
- Customer Q&A
Browse 18 questions Browse 18 questions and 57 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.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.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 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. MikeCan the Siphonless 6.5 Gal Big Mouth Bubbler be used for Wine?BEST ANSWER: Yes, you could. The only problem is that most wine kits are for 5 gallons and then you have too much head space. In hindsight I would not have bought it. Should be ok if you make your own wine from fruit though.I 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.Is it a screw on lid ?BEST ANSWER: You have the option of purchasing the screw-on or the press-on- I have both, used both, both are excellent. Press-on more user friendly.Will the little big mouth bubbler threaded screw down lid work on this unit in lieu of the universal lid?BEST ANSWER: Hello!
The outer diameter of our Big Mouth Bubblers is no longer regulated, so there is no guarantees that the screw type lid will work with any other Big Mouth Bubbler.Can this be used in wine making?BEST ANSWER: Yes. I have made multiple batches with the siphonless bubbler. It also works well to use to fill your bottles after racking the wine over from the secondary bubbler.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.