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Big Mouth Bubbler® Universal Single Port Lid

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Big Mouth Bubbler® Universal Single Port Lid

SKU: 41829

The first-ever universal lid for Big Mouth Bubbler® fermentors. Engineered to suit any fermentor in the Big Mouth Bubbler® family.

Free Shipping on Orders Over $30



The first-ever universal lid for Big Mouth Bubbler® fermentors. Engineered to suit any fermentor in the Big Mouth Bubbler® family.

From EVO 2 and Plastic to first-generation glass and even the Little Big Mouth Bubbler®, ribbed silicone rings ensure a completely air-tight seal. Better yet, the port is perfectly sized for all your standard homebrew tools, from a universal carboy bung and standard blowoff hose to a testing thief and auto-siphon.

Easy to clean, just pop it in the top rack of your dishwasher and run it through a standard cycle. You can also use your standard homebrew cleaners and sanitizers.

The universal lids all use a:
  • Small universal stopper
  • Standard 6.5 rubber stopper.
  • Details & Instructions

    Additional Information

    2.2 / 5.0
    22 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    Not an upgrade
    i have five big mouth bubblers, and was excited to get these when they came out. Unfortunately, they were quite the disappointment as they would not stay in the opening (kept sliding up). I would not recommend this product.
    February 4, 2016
    Response from Midwest Supplies
    Hi Kyle,

    Thanks for filling out the review. I'm sorry that the universal lids are giving you trouble. One thing to keep in mind is that they will seal much better if the mouth of the bubbler is dry when the lids are inserted. If you'd like to contact us though, we'd be happy to work on a resolution for you.
    November 2, 2016
    Midwest Supplies
    Third try and it still isn't right
    I think this is the third lid they have made for the Big Mouth Bubbler and again, its a failure in my opinion. I just bought the Universal lid listed here and have the screw on lid before this one. Both of them have been problematic. This one is very flimsy plastic with some nice silicone to attempt at creating a seal. You have to push down on it to try and get it seated and then it shifts back out slightly when you let go. If your airlock is on already, expect a lot of bubbles to go out as you push down and then a significant amount of vacuum and sucking airlock liquid back down into your wort since the lid will not stay in place after pushing it down. It is VERY frustrating and another cheap/poor design. I absolutely love the concept of the big mouth carboy and would gladly pay 2-3 times the price of a high quality lid that works. Instead they seem to crank out different lids like they are disposables. Perhaps they just want you to buy one lousy lid after another in hopes that one will finally work.
    March 22, 2016
    Response from Midwest Supplies
    Thanks for sending the review - sorry to hear the lid is not working great for you. Some have played around with editing the screw down lid to go around the new lid to hold it in place if yours wants to pop up. Inserting dry can also avoid any movement like that. We'll keep looking into solutions for the perfect lid. Let me know how I can help you! Cheers! James J.
    November 2, 2016
    Todd J Staff
    Universal Big Mouth Lids
    When I first used these & wasn’t real happy. Then I read another review someone said to turn the silicon gasket over. I tried this & it works great. I turned gasket upside down then wet it with sanitizer (goes on easier) & no creeping up. Before doing this I had to add weight to keep it down. Not now. Buying a few more.
    February 23, 2018
    Solved the issue!
    This solved my issue with trying to seal the big mouth fermentors! If you have issues with them popping off under mass pressure, you can trim the new lid and allow for use with the original plastic screw top. Again - this was a huge improvement over the original top!!
    August 16, 2016
    Great Vessel...Terrible Seal
    I was so excited to see a carboy I could easily clean. The problem is the lid does not stay in place. I have to use a ratchet strap to keep it closed. Any liquid on the o-ring and it pops off. I ordered 2 of these, the first one has the screw on lid which was also terrible. The seal provided was too thin and you had to tighten it too much to get a good seal. I ended up having to order the new style lid and cut a hole in the screw on lid and use that to seal it great...the problem is they no longer make or stock the old screw on lid so I'm stuck with the new style and having to tie it down...very annoying. DO NOT BUY UNTIL THEY IMPROVE THE LID!
    February 16, 2017
    I bought 5 of these thinking I could replace my classic lids, I also did it simply because you can no longer purchase extra screw on tops for the glass bubblers or the two piece for plastic ones (I've got roughly 5 carboys of each). Basically, it was this or bust.

    These things keep slipping up. I saw the comment about 'they work best when dry' which is as insane as expecting my 10 gallons I just brewed last week using these for the first time to have not gotten infected (thanks for THAT $100 down the drain btw NB). The whole reason the caps are wet? StarSan.

    I suppose I could purchase cinder bricks to weigh it down until things dry, but thats asking for things to break or spill - especially the glass bubblers. Shouldn't a product designed for with home brewing methods? Unless there's some dry powdered sanitizer I'm unaware of, these products are useless.

    I'm shopping ebay to see if the old two piece lids are available so I can TRY to replace these, but if I strike out I'm returning all the bubblers I just bought too. this is ridiculous :/
    March 21, 2017
    1 year ago
    Response from Midwest Supplies
    Thanks for the review. We are sorry that you are disappointed with the lid, but will contact you to see if we can find a way to help with a better experience. One note on Star San, according to the general use instructions, all homebrewing applications should be allowed to air dry before use. We will contact you soon with some tips, tricks, and support to help improve your Big Mouth Bubbler experience.
    March 21, 2017
    Todd J Staff
    Big disappointment
    Like several others I have read here, this lid is an extreme disappointment. Impossible to get a good seal. Why not come up with a solution that works with the original screw top. Like the bottle, hate the lid. Wont be buying anymore.
    November 13, 2016
    These lids are the worst, never ever buy
    These things don't work. I don't know why they ever thought of making these. Read all the reviews on here, on other websites, they do not work. Under good fermentation they pop up, losing the seal. I have tried several of them, I have tried making sure everything is dry before placing in... nothing works other than weighing it down with a weight of some sort. Horrible. Wish I never bought the big mouth bubbler because of this horrible lid.
    February 21, 2017
    Works great with Little Big Mouth Bubbler
    Fits perfectly with the Little Big Mouth Bubbler and seals very well. There were several times where I had trouble getting the original lid with its foam gasket to seal completely but it was easy with this lid.
    March 7, 2017
    1 year ago
    I was pleased with the
    I was pleased with the screw top and ease of cleaning but was surprised that the plastic was so thin.
    February 15, 2016
    Customer Q&A
    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 1 question Browse 1 question and 3 answers
    What is the correct size of stopper to use with these lids?
    Leland H on Feb 26, 2017
    Big Mouth Bubbler® Universal Single Port Lid
    Big Mouth Bubbler® Universal Single Port Lid
    Big Mouth Bubbler® Universal Dual Port Lid
    Big Mouth Bubbler® Universal Dual Port Lid
    BEST ANSWER: It takes a small universal stopper or a 6.5 stopper

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