BrewBuilt™ IceMaster Max 4 Glycol Chiller

BrewBuilt™ IceMaster Max 4 Glycol Chiller

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The IceMaster Max 4 is designed to cool fermentations in small vessels. It features 4 built-in submersible pumps with independent digital temperature controllers and can be used with any vessel that has a glycol jacket or submersed cooling coil/rod. Each controller includes a temperature probe that should be inserted into a thermowell in your vessel or can be taped to the outside of the vessel if you don't have a thermowell. The digital controller then measures the temperature of your tank and turns the submersible pump on or off to cool to your desired set temperature. Up to four tanks can be controlled separately with one IceMaster Max 4. 

The IceMaster can be used with any fermenter that has a built-in cooling jacket, added CoolStix, or a submersed cooling coil. It works well as the cooling source for the following sytems and fermenters.

  • CoolStix - CoolStix can be added to a wide range of carboys, fermenters, and tanks and the IceMaster works really well in combination. Each CoolStix is available with or without a pump kit; for use with the IceMaster Max 4 you will only need the CoolStix and some tubing to connect it to the chiller.  
  • Ss Brewtech Fermenters and Brites - Ss BME Chronicals, BME Brites, and Unitanks come with cooling coils and neoprene as standard. The optional chilling FTSs will not be needed for use with the Max 4. The cooling coil for standard Ss Chronicals and BrewBuckets are not sold a la carte and must be purchased with a submersible pump, which is not needed for the Max 4. For standard Chronicals and BrewBuckets you might consider the IceMaster 100 for cost savings.
  • Spike Conical with Optional Cooling Coil - the cooling coil for Spike CF series conicals is available for purchase independently from the TC-100 cooling system. For use with the Max 4 you will only need the the coil and some tubing to connect it to the chiller.
  • Speidel Tanks with Optional Cooling Jackets - You will need two lengths of tubing to connect the chiller to each tank.   
  • Grainfather Fermenters - Grainfather fermenters have standard cooling jackets. You will need two lengths of tubing for each fermenter.
  • Blichmann Fermenators with Optional Cooling Coil - You will need two lengths of tubing for each Fermenator.

It is always difficult to determine exactly how many tanks can be chilled at one time as it depends on what is happening in each tank, if the tank is insulated, and what the ambient temperature is. Cold crashing always requires the most energy and requires tank insulation. We have experimented with capacities and can provide this general guide based on a 75°F ambient and neoprene insulation. Neoprene provides a modest amount of insulation so you would obtain better results using Armaflex or a higher R rated insulation. 

Cold Crashing Capacity
Calculated at 75°F ambient temperature with neoprene insulation. 

  • 2 - 1 BBL (31 Gallon) Tank
  • 3 to 4 - 1/2 BBL (15-20 Gallon) Tanks
  • 4 - 10-14 Gallon Tanks 
  • 4 - 5-7 Gallon Tanks

Set Up
In order to hook up the IceMaster to your fermenter or tank's cooling system, you will need 2 lengths of tubing per vessel. All tubing connections should be secured with hose clamps.

  • Length 1: Barb of 1st bulkhead (IN) to cooling system outlet
  • Length 2: Barb of 2nd bulkhead (OUT) to cooling system inlet


  • 4 built-in submersible pumps with independent digital controllers
  • Pump controllers read in °C
  • Temperature controller reads in °C
  • Labeled IN and OUT stainless bulkheads with 3/8" OD barbs
  • Tank Capacity: 30L/8 Gal. Water Capacity
  • Compressor: 3/8 HP
  • Cooling Capacity: 950 Watt/3200btu/.26 tons
  • Refrigerant: r134a
  • Voltage: 110V (3.6 amps)
  • Dimensions: 16.1" x 16.1" x 26"
  • Wheels included



Item # GLY354
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 111 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
Best price for a chiller I don't need to buy anything else to get running.
It is all inclusive with nothing to add such as pumps and PID.
Ray W B on Dec 2, 2020
Best price for a chiller I don't need to buy anything else to get running.
I liked that it includes the controllers.
JOHN PETER S on Dec 23, 2020
It is all inclusive with nothing to add such as pumps and PID.
Ray W B on Dec 2, 2020
After a lot of research, this unit provided the most features, the fact that all of the pumps and the controler are included make a big difference when comparing to other brands.
Matt Wisner on Oct 30, 2020
Research leads me to believe that this will best fit my needs at an acceptable price point.
MATTHEW Kyle H on Sep 25, 2020
Product video
Ryan J F on Jul 15, 2020
Straight Chillin'
craig on Jun 11, 2020
Curtis M on May 7, 2020
Value and simplicity; pumps and temp probes includes with a good capacity reservoir and power.
Tyrell E on Apr 11, 2020
It has a great price point and comes with pumps and probes.
James P. Coleman, II on Apr 4, 2020
raymond v on Feb 28, 2020
The previous model of Ice master works really well, it's better with built in temperature controllers
Heinz Georg Hiller C on Feb 12, 2020
I liked that it includes the controllers.
JOHN PETER S on Dec 23, 2020
After a lot of research, this unit provided the most features, the fact that all of the pumps and the controler are included make a big difference when comparing to other brands.
Matt Wisner on Oct 30, 2020
What additional items are needed to control
the temperature on the Grainfather conical?
Steve Gawlinski on Mar 23, 2020
BEST ANSWER: You will need to get a stopper with a thermowell and a airlock hole.
It says in manual that all four temp probes have to be connected or you get error.what if I will use it only for two fermenters?
Jonas Kristensson on Jun 23, 2020
BEST ANSWER: Hi. You can individually turn on/off each temperature controller. This will keep the unused controller from turning on the pump, which will shoot out the coolant if a hose is not connected. If you unplug the temp probe it makes a loud beeping noise that can't be turned off until you plug the probe back in. The solution is to leave the probe plugged in and turn off the controller for the unused probe. I loop back the hose from the Outlet to the Inlet to make a loop for an unused controller. This way if the controller gets turned on and tries to pump coolant, it just gets put back into the reservoir. Not the most elegant solution, especially with unused probes hanging there, but otherwise, the chiller works great.
Hi folks. Which temperature sensors are best matched to this unit? Thanks in advance
Stefan Mueller on Nov 14, 2020
BEST ANSWER: It comes with built in temperature sensors for each of the built in pumps. No additional sensors should be needed to use this unit for cooling. It will not, however, control a heating setup as far as I can tell and I had to get a separate ink bird sensor to control my heating pad for keeping up my ale's temperature at night in the garage this winter.
For SS Brewtech 1BBL Brites - where does one put the temperature sensor? All that's needed is the coil, correct?
Michael Kramer on Oct 29, 2020
BEST ANSWER: Temp sensor goes in the thermowell. Different carboys have different thermowell. For ex, the SS Brew Bucket has a thermowell and it comes with a digital temperature display that fits over the thermowell. The sensor(probe) is deeper in the thermowell and the digital temperature display then encloses the thermowell. If you have a 5 gal plastic bucket or glass carboy then you can get lids for those that have a 15 inch thermowell that can be adapted to the lid and the sensor then is sunk down into the wort through the 15 inch thermowell from the top. This should get you started in the right direction. Good luck
What is the reservoir capacity and what is the glycol-to-water mix?
Christopher Baas on Sep 17, 2020
BEST ANSWER: The reservoir has an 8 gallon capacity. The included instructions state "Fill the reservoir with a 20% propylene glycol solution - 4 parts RO/distilled/deionized water to 1 part 99.9% propylene glycol.
Does the controllers have an option to add a heater to them as well so the same controller can heat and cool?
Jonas Kristensson on Jun 26, 2020
BEST ANSWER: Hi Jonas - unfortunately the controllers do not have a second input to control a heating element.
What is the dBA level when it's running all four pumps?
Michael Kramer on Oct 31, 2020
BEST ANSWER: I don't have a decimal meter but the unit sits next to my desk and the pumps are extremely quiet to the point I don't even know they're on. The refrigeration compressor is no louder than a mini refrigerator

4.1 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 3 out of 5
It good, not great
Real rating is 3.5.
It can keep multiple tanks very cool and I live the built in sensors. It has definitely helped me up my lager game for sure.
Price is fair.

Had issues with some of the senor inputs being very loose needing some glue.
It will make an annoying sound unless a sensor is plugged in...even if you "turn it off" I find this annoying because I would like to store the other sensor cables away when I'm not using them.
The master glycol temp controller (stc 1000) on the bottom went bad on me twice. Moorebeer was great about replacing..but annoying. The one time is nearly froze the glycol which I'm sure would have damaged the system. I won't be leaving it on while I'm deployed...thats for sure.
Works as advertised. Could be made with better parts...little worried about longevity on this unit. But we will see.
February 18, 2021
1 year ago
Rated 5 out of 5
Great value fat a quality chiller.
I was surprised by the quality and features of this chiller. The only drawback is that it only reads temperature in Celsius. Love the temperature control I have now.
Love this chiller with my fermenters.
Love this chiller with my fermenters.
January 1, 2021
3 months ago
Rated 4 out of 5
When I received it one of the temperature displays was not working. luckily I'm handy and was able to fix it without too much of a problem. Overall it works great. I wish there was a switch underneath every display to shut them off and on other than that I like the unit and it's a great price compared to other chillers
September 16, 2020
8 months ago
Rated 5 out of 5
Best addition to my brewery in years.
This is a great unit. It seems to be well built, it runs quietly and is easy to operate with a little practice. What drew me to it over the other models is the integrated pumps. However, unless something has changed since my purchase, the instructions that come with it are inadequate to say the least. I recommend downloading or printing the PDF manual from the More Beer website and reading it thoroughly before playing with your new toy. That being said, these instructions are lacking as well. Neither mention putting the drain plug in before filling the bath, a rather important step, and there are a few other recommendations I would make that you won’t find in the manual. First, before you fill the bath or plug it in, cut four short pieces of silicone or vinyl tubing and connect each pump outlet and inlet together. This will prevent you from blowing glycol all over the floor if one of the pumps accidentally kicks on. Second, change the set temperature set point of all four pumps to at least ten degrees above the highest ambient temp of your brewery when not in use. Again, to prevent the pumps from inadvertently coming on. The third point pertains to the glycol/water ratio. The instructions recommend a 20% glycol solution, but say nothing about the bath temperature. The 20% solution will probably be fine if you’re not going to run your bath temp. below 32 degrees. I did some online research prior to my purchase and learned that most breweries run their bath temps at 27-28 degrees f and recommend the glycol solution freeze point be 20-25 degrees lower. ie, 27f bath set point, 2f-7f glycol solution freeze point. This translates to a 33%-35% glycol ratio. The reason for this is that when the unit is under load, say during a cold crash, the compressor runs constantly and the coils drop well below 0 deg. f which causes them to become encased in ice which lowers efficiency. As a test, I did a trial run with 23 gal. of sanitizing solution. (27 gal. Blichmann fermenter in an insulated box). I started with a 25% glycol ratio with a 27f bath. I dropped the solution to 68f and held it for 24 hours, then cold crashed to 45f and held another 24 hours. After the first 24 hours there was about 1” of ice around the coils and after the 24 hour crash, that had more than doubled. So I warmed the bath to melt the ice, drained off one gallon of the 25% solution and added a gallon of glycol to raise the ratio to about 35%. The next weekend, I brewed and fermented my first batch. There was no icing during the 5 day fermentation. Immediately after the 2.25 hour drop from 68f to 45f, there was .25”-.5” of ice on the coils, but this melted within 8 hours of the temperature leveling off, and there was no further icing during the 5 day cc. The test cold crash from 68 deg. to 45 deg. took 2 hours 50 minutes and the beer took 2 hours 15 minutes, which speaks to the efficiency of the proper glycol ratio. I’ve had the Blichmann conical since they first came out, and bought a More Beer heated & cooled about 7 years ago. Don’t get me wrong, I love my More Beer conical, but it takes a long time to cool. With the addition of the cooling coils to the Blichmann, the Brewbuilt cut my cold crash time by 80%-85%, and, in the hottest summer months, I usually can’t get the More Beer below 48 deg. The glycol chiller held it at 45 deg. no problem. You will need to insulate your fermenter as well as possible or keep it in an insulated container of some sort.

If you have the ability to add coils or rods to your fermenter and you have the money, I would highly recommend this chiller, just do your homework first. Bottom line, this is the best addition to my brewery in years.

Heat exchanger w/fans connected to glycol chiller
Heat exchanger w/fans
Blichmann 27 gallon fermenter
July 27, 2020
8 months ago
Rated 5 out of 5
Very nice product, pumps and controllers included so definitely saves some money.
Aside from very minimal documentation it’s working great!! Took a shower in glycol because all the pumps came on when I first fired it up. Cheers!
July 3, 2020
8 months ago
Response from MoreFlavor
Hello, thank you for leaving a review! The instruction manual for the unit can be found right below the description in the Documents section. Cheers!
September 5, 2020
Graciela H
Rated 4 out of 5
Instructions could use some updating. Had a difficult time setting temps but once you figure it out not bad. Overall a good product
July 1, 2020
8 months ago
Rated 5 out of 5
Lack of instructions, but solid product
So I wanted to move away from the space of the garage fridge in my home in Arizona, so I decided on this unit for the price because it came with the pumps and probes.

I modified my two SS Brewbuckets by adding the temp twister cooling coil and using full-size keg insulating jackets to cover them. Coils are connected with quick connects with flow stoppers. I plan to do a 3rd fermenter set up.

The 4th line i use to chill water for wort chiller. Same quick connect lines into an old 3/8 in SS wort chiller into a 6-gallon insulated bucket. At the beginning of brew day, I set that up and make it as cold as I can. When it is time to chill, the water can be the mid 30s and use another pump to re-circulate the water to chill beer. The system has had the capacity to manage the heat exchange so I can minimize water waste and stay in the garage while brewing.

Is this thing an investment, yes. I think in the long run, it will be worth it in the increased capacity to have 3 fermenters going to decrease the water waste from chilling beer as the footprint is small.
Set up going to brewtech buckets covered by the Keg insulator jackets to help control temp.
Chiller in the insulated cooler to pre-chill water for wort.
June 19, 2020
Response from MoreFlavor
Hi Estaban, thank you for leaving this awesome review! The most up to date instruction manual is provided on the product page in the document section. Cheers!
September 5, 2020
Graciela H
Rated 1 out of 5
Super Disappointed
I was really hopeful when this thing came in, despite the lack of instructions that everyone talks about. After some research it looked like I had it all figured out so I went for it. When the unit came in, the first impression I got, was that it was a used unit or just really poorly put together. All the displays and temp sensor plug-ins were loose, so I had to hot-glue them back on. After filling it up, the back drain started leaking, and one of the front ports as well. Got the back one fixed with some extra plumbers tape, but the front port is still leaking, can't fix it at all, though I feel like a brand new unit shouldn't require all of this work. Now I never get worked up about anything this much and don't mind adjusting, fixing a thing or two if it got damaged during transit but this is too much. So much for cold crashing this weekend. I'd recommend you stay away from this POS and spend your money elsewhere.
June 14, 2020
Rated 5 out of 5
Happy but instructions lacking a critical detail
Seems to be cooling well and good value.

Caution however. The instructions are very abbreviated and Step 2 is to locate and fill the glycol/water reservoir. It would have been helpful to remind you to put the cap on the glycol drain tube at the back of the unit, and how to attach.

After cleaning up a gallon of glycol from my garage floor, I ordered two more gallons and now think I am ok although I am only hoping I put the plug on properly. No instructions for that.
May 28, 2020
9 months ago
Rated 3 out of 5
It does do what it says.
Very limited instructions. Impossible to find more info on internet even through manufacturer’s website. It does make glycol/water mix cold and it does circulate, so I guess it works... for same cost could have bought Blichman and I kinda got buyer’s remorse.
April 25, 2020
11 months ago