Author: Henry Chen Publish Time: 2026-04-30 Origin: Cassman
When you're planning your craft brewery setup, one of the biggest decisions you'll face is choosing between electric and steam heating systems for your brewhouse. This isn't just a technical question—it's a decision that will affect your daily operations, energy costs, and ultimately, the quality of your beer for years to come.
We've been helping breweries of all sizes make this exact choice for years, and we want to share what we've learned. Let's break down the real differences so you can make the best decision for your operation.
Before we dive into the comparison, let's quickly cover how each system actually works.
Electric brewhouses use electric heating elements submerged in your mash tun and kettle. These elements directly heat the liquid through resistance heating. It's straightforward technology that has been refined significantly over the past decade.
Steam brewhouses work differently. They require a separate boiler to generate steam, which is then circulated through coils or jackets in your vessel. The steam transfers heat to your wort and mash indirectly.
Neither system is inherently better. The right choice depends on your specific situation.
If you're setting up in a commercial building, electric systems are often significantly easier to install. You don't need a dedicated boiler room, complex piping systems, or the extensive safety equipment that steam systems require. For many urban craft breweries operating in converted warehouses or storefronts, this can be a game-changer.
We recently worked with a brewery in Portland that had very limited space for equipment. An electric system allowed them to fit everything they needed without sacrificing precious square footage to boiler infrastructure.
Here's where electric really shines for craft breweries. Modern electric heating elements offer remarkably precise temperature control. When you're doing step mashes for complex beer styles, that precision matters.
With electric, you can program exact temperature ramps and hold times without the lag and overshoot that sometimes accompanies steam systems. Your enzymes work exactly as intended, and your malt bills perform consistently batch after batch.
Let's talk money. Electric brewhouses typically have a lower upfront cost because you're eliminating the boiler, associated piping, water treatment equipment, and the installation labor that comes with steam systems. For startups operating on tight budgets, this difference can be substantial.
Electric systems can potentially run on renewable energy sources as your region's grid gets cleaner. Some breweries we've worked with have installed solar panels specifically to offset their brewing energy costs. That's harder to do with a gas-fired steam boiler.
If you're brewing 15 barrels or more per batch, steam has been the industry standard for good reason. Steam transfers heat incredibly efficiently, which means faster turnaround times between batches. For high-volume operations, those time savings add up quickly.
When you're producing high-alcohol beers or brewing double-digit ABV stouts, you need serious heat input. Steam delivers more BTUs per hour than most electric setups can handle practically. The marginal cost per batch stays lower at scale with steam.
Large-volume brewing puts different demands on your equipment. Steam systems maintain temperature stability better when you're working with full vessels. There's less temperature drop when you add cold strike water or when you're lautering slowly.
In many industrial areas, steam infrastructure already exists. Some facilities have access to shared steam systems or co-generation plants that make steam extremely economical. If you're moving into such a facility, steam might be the obvious choice.
The "electric is more expensive to operate" generalization isn't always true. Electricity rates vary enormously by region and time of use. In some areas, off-peak electric rates make electric brewing far cheaper than natural gas. Get the actual numbers for your location before assuming.
Both systems require maintenance, but the nature of that maintenance differs. Electric elements eventually need replacement—typically every 3-5 years depending on water quality. Steam boilers require regular service, water treatment monitoring, and annual inspections. Neither is necessarily cheaper or easier long-term.
Hard water destroys heating elements quickly. If you're on municipal water with high mineral content, you'll need treatment regardless of which system you choose. We can't stress this enough—water treatment is non-negotiable for either heating method.
Here's how we recommend thinking through this choice:
What's your batch size? Below 10 barrels, electric typically wins on simplicity and cost. Above 15 barrels, steam often makes more sense for efficiency.
What's your available space? No room for a boiler? Electric eliminates that requirement entirely.
What's your local energy cost? Do the actual math for your utility rates and expected production volume.
What's your growth trajectory? If you're planning to scale significantly, a steam system might handle growth better.
What's your building situation? New construction or renovation? Electric is almost always easier to accommodate in retrofit situations.
For most craft breweries starting out or operating at the small-to-mid scale, we typically recommend electric systems. The simplicity, precision, and increasingly competitive operating costs make it the smart choice for the majority of situations we see.
However, we're not dogmatic about this. We've helped many breweries spec out steam systems that were absolutely the right choice for their specific circumstances.
The key is making this decision based on your actual situation, not assumptions or industry conventions. Talk to us about your plans, and we'll help you figure out what makes sense for you.
Henry Chen, CEO
At Cassman, we've helped hundreds of breweries worldwide find the right equipment configuration for their goals. Whether you're going electric or steam, we build brewhouses that perform reliably and help you make great beer consistently.
