The BoilerMaker™ G2 is designed with brewers in mind, combining quality, ergonomics, aesthetics, and performance. Crafted from high-quality stainless steel with a brushed finish, it features single-piece seamless construction for durability. Choose between Tri-Clamp or NPT ports for custom setups. Its clean, uncluttered design is packed with innovative features like the patented stepped bottom, cool-touch handles, and a lid handle that allows convenient storage on the kettle, a shelf, or anywhere in your brewery. The brushed finish hides water stains, keeping your kettle looking brand new for years.

The exclusive snap-in dip tube installs without tools and drains to within 3/8” of the kettle bottom, maximizing efficiency.

The G2 linear flow valve allows precise flow control for sparging, lautering, and chilling, improving system repeatability. Its 90-degree outlet rotates for kink-free hose routing, eliminating extra fittings. The valve disassembles in seconds for quick cleaning, and the cool-touch silicone grip handles temperatures up to 600°F without melting, unlike vinyl grips on ball valves. The parabolic valve stem ensures a near-linear flow, making adjustments intuitive—25% open equals 25% flow, unlike ball valves where flow is harder to fine-tune. See the flow graph for details!

The BoilerMaker™ G2 includes thoughtful features like handle orientation for easier carrying and a lid that stores on the kettle handle. The standard heavy-duty borosilicate glass level gauge never clouds or scratches, featuring a stainless steel guard with engraved gallon and liter graduations, a cleaning brush, and clean-out ports. It doubles as a mash manometer to warn of stuck mashes. The adjustable BrewMometer™ with a patented brewing dial face offers ultimate convenience. Robotically welded 1.5″ Tri-Clamp ports ensure durability and versatility.

The BoilerMaker™ G2 and Surface™ Brew Kettles come with a lifetime warranty, reflecting Blichmann Engineering’s commitment to quality. The Surface™ model eliminates the need for a BoilCoil™ or HERMS Coil, potentially becoming a family heirloom and the centerpiece of your brewery. All 7.5, 10, 15, and 20-gallon kettles are single-piece, American-made in Lafayette, Indiana. The 30-gallon and larger kettles, including Surface™ models, are imported but meet our strict quality standards. Continuous improvements may result in minor design variations from photos shown.

Crucial to optimal performance of your new BoilerMaker™ Brew Kettle is selecting the size that best fits your needs. Selecting a brew kettle, mash tun, or hot liquor tank that’s too small or too big can cause frustration and poor performance.

Boil Kettles: We recommend always doing a full wort boil, as do most brewing texts and advanced brewers. This minimizes the addition of top-up water to compensate for boil-off, and starting with the volume called for in your recipe will let you know early in the process if you’ve hit your target gravity, giving you more time to correct the problem. Also, you’ll get more consistent hop utilization by sticking to the recipe volumes, as utilization changes significantly with specific wort gravity. Last, but certainly not least, is boil-over prevention. Having enough head space will keep this irritating problem at bay.

We recommend a boil kettle approximately 2 times the size of the finished batch size. Although this may seem a bit much, a 10 gallon batch will typically start with a 13 to 14 gallon pre-boil once you compensate for cooling contraction, transfer losses, and boil-off. This will allow for a reasonable head space to reduce boil-over problems. For example, if you’re a 10 gallon batch brewer, you’d select the 20 gallon BoilerMaker™ brew pot as your boil kettle.

Mash Tun Vessels: We recommend filling your mash tun vessel to no more than 80% of capacity. This will allow sufficient space for dough-in of the grains and additions of sparge water and sparge arms, etc. The chart below includes various water-to-grist ratios to assist you in your selection. The green column is our recommended water-to-grist ratio. Minimum volumes are to ensure that the thermometer probe is adequately submerged and also that you have an adequate grain bed depth for proper wort filtration. We’ve designed the BoilerMaker™ brew kettle sizes to seamlessly blend from size to size, so you’ll never need to sacrifice.

Hot Liquor Tanks: We recommend sizing your Hot Liquor Tank (HLT) to the same size as your mash tun to ensure you have plenty of sparge water available on brew day.

Recommended Three Kettle Systems For Typical Batch Sizes (HLT / Mash / Boil):

We offer a hole plug so that you can install the BrewMometer™ in multiple locations, perfect for multiple batch sizes in one kettle!

IMPORTANT INFORMATION:
For doing multiple-sized batches with the same equipment, please see the SUPPORT tab for recommendations.

BoilerMaker™ G2 Manual