DetailsUse in conjunction with a Digital Temperature Controller and an Electric Fermentation Heater (#40535) for complete control over fermenting temperatures in cool environments. Fits 3, 5, 6, or 6.5 gallon glass carboys. Not compatible with Better Bottles.
Compatible with the Thermostar® and Johnson Digital temperature controllers..
- Details & Instructions
3.2 / 5.026 ReviewsDoes not fit standard carboysThe stopper is too small to fit on my 5 or 6.5 gal. carboys. I was able to buy a rubber bung and drill two holes in it to replace the one that came with this.February 5, 2013Can be made to work wellIts not hard to modify the stopper to increase the diameter. As some have mentioned use cellophane wrap. For this rice I'd have expected something better.September 7, 2013Does not fit Better Bottle, easy fix possibleThis stopper does not fit well into the better bottle, but this can be easily fix by getting a drilled bung and inserting the metal thermowell into it. Also by doing the bung fix I was able to drill a second hole to insert a blow off tube. This thermowell is very useful in providing an accurate indication of temperature for the controller.January 9, 2014Must have accessoryUsed it in conjunction with Johnson Temperature Controller and a Fermenting Heater. Keeps your sensor lead (thermostat wire) from coming in contact with your beer. Thus saving your brew from unwanted bacteria. Only four stars for quality because I had to file jagged edges at the opening of the tube that could have harmed the sensor lead. This only took a couple of seconds. Price could be a little less as well when you pay almost as much for the heat wrap. Otherwise more than pleased.January 23, 2014Necessary equipmentThis is the second thermowell/stopper combo I've aquired. They're dead useful. Looked a little dingy coming out of the box, but cleaned up great. I'll be using to maintain temperature for a sour mash.February 13, 2014Very Useful with Johnson ControlA must have to control the temperature of your wort. Works great out of the box._x000D_Additionally, if you like to cook, this device along with a Johnson control and a croc-pot make for a great, affordable sous-vide system.February 25, 2014Works GreatI was a little concerned from reading some of the reviews. While the included double hole stopper may be too small to easily fit some carboys, it is a perfect fit for the plastic Big Mouth Bubbler. I plan on switching from glass carboys over to the plastic BMB so I will be glad to use this. Another concern I had was if the temp probes that I am using for my BrewPi would fit and they do. I have the stainless sealed probes from china. I also use a STC1000 in another fermentation chamber. This probe also fits perfectly.December 5, 2014Simple Effective toolIt works great. It does what it says it does. It drops right into the center of your fermenter & you get the most accurate temp reading on your fermentations. You need a little finesse though._x000D_ _x000D_ I guess I was expecting more. This is simply a 15 inch stainless steel rod that has been cut, crimped, & welded on one end & flanged on the other so it wont slip through the stopper. The other reviews are spot on. The stopper is fairly small for standard 5 gallon carboys. I had to use my small univeral carboy bung with the hole drilled so the thermowell wouldn't drop in. Left the bung on loose since I racked to carboy for secondary/cold crash. You could simply make this yourself if your on a budget & have the know how.October 17, 2012I like it!I'm still a brewing novice but I sure like this thing. Maybe I don't know any better yet, but it sure fits my needs._x000D_As mentioned in other reviews, the thing fits almost flush with the top of the carboy, but you can still get it out fairly easily._x000D_If it were made from the next stopper size larger it would be a complete 5 star!February 3, 2013No Complaints, Not to small, just need to do it right1.) Make sure the hole is dry. If you splashed any wort or yeast, dry it with sterile guaze pads_x000D_2.) Put the airlock or blow off hose into the hole before putting it in the carboy._x000D__x000D_Works great. Way more accurate than taping it to your carboy. _x000D__x000D_Do be sure that the temperature bulb from your thermostat will fit in this stainless rod.April 29, 2013
- Customer Q&A
Browse 2 questions Browse 2 questions and 8 answersWhat is the inner diameter of the stainless tube? 1/4"?BEST ANSWER: I asked them the same question because I wanted to know if the 12 inch long temperature censor would fit inside. slides like a perfect glove.. I love it. More over when I save for a big mouth plastic I'll to see if the rubber fits.. The Thermostar tm long length temp censor is one rch thinner than the 1/4 inch ID (inside diameter) of the stainless tubewhat size stopper is this? What is the diameter of the bottom and top?BEST ANSWER: I can’t comment on the exact size, as I’m not near it now, but I know that it fits my 5 gallon glass carboy I bought from there perfectly Enter an answer to this question.