6 Best Humidistats for Cheese Aging

You’ve spent hours carefully crafting that beautiful wheel of cheddar or gouda. The milk was perfect, the curd set beautifully, and the press was just right. Now comes the hard part: waiting, and trusting your "cheese cave" to do its job.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

The Role of Humidity in Traditional Cheesemaking

Humidity is the unseen partner in cheese aging. Get it wrong, and you end up with a cracked, dry wheel or a rind covered in undesirable molds. Get it right, and you create the perfect environment for a cheese to express its true character. The goal is to manage moisture loss, not eliminate it.

A proper humidity level, typically between 80% and 95%, allows the cheese to breathe. It encourages the development of a healthy, protective rind that shields the interior paste while it matures. This rind is a living ecosystem of yeasts and molds, all of which contribute to the final flavor and texture. A good humidistat is the brain of this system, telling your humidifier or dehumidifier precisely when to turn on and off to maintain that delicate balance.

Without this control, you’re just guessing. A simple hygrometer tells you the current humidity, but a humidistat acts on that information. It’s the difference between knowing your field is dry and having an irrigation system that waters it automatically. For consistent, traditional results, automation isn’t a luxury; it’s a fundamental tool.

Inkbird IHC-200: A Reliable Plug-and-Play Option

The Inkbird IHC-200 is the go-to for a reason. It’s simple, reliable, and requires virtually no setup beyond plugging it in. You plug the Inkbird into the wall, your humidifier and dehumidifier into the Inkbird, and place the sensor probe in your cheese cave. It’s that straightforward.

This unit is perfect for the hobbyist using a converted mini-fridge or chest freezer. Its dual outlets allow it to control both a humidifier (like a small ultrasonic fogger) and a dehumidifier (often the fridge’s own compressor or a mini dehumidifier). You set your target humidity and a differential—say, 85% with a 3% swing—and it handles the rest. The Inkbird will kick on the humidifier when it drops to 82% and turn it off when it hits 85%.

While it lacks the fancy data logging of more expensive models, its simplicity is its greatest strength. It does one job and does it well, providing the stable environment needed for most hard and semi-hard cheeses. For someone aging a few wheels at a time, this is often all the control you’ll ever need.

WILLHI WH1436H for Dual Humidity Management

The WILLHI WH1436H operates on a similar principle to the Inkbird but offers a slightly different user interface and a reputation for solid performance. Like the Inkbird, its key feature is the dual-plug design, which is non-negotiable for anyone aging cheese in a variable environment. Your basement might be damp in the summer, requiring dehumidification, but dry in the winter, demanding a humidifier.

This unit allows you to set your humidity setpoint and a differential (also known as hysteresis). This prevents your equipment from "short cycling"—rapidly turning on and off—which wears out your appliances and creates an unstable environment. For example, if your target is 90%, you can set it to activate the humidifier at 88% and the dehumidifier at 92%, creating a stable band for your cheese to age in.

Think of the WILLHI as another dependable workhorse in the plug-and-play category. It provides the essential control needed to prevent a cheese from drying out too quickly or becoming a science experiment of unwanted mold. It’s a solid, practical choice for building a reliable cheese cave without overcomplicating the setup.

Auber TH220-W: Precision for Serious Affineurs

When you move from aging a few wheels to perfecting specific styles like a delicate bloomy rind or a pungent washed-rind, precision becomes paramount. The Auber TH220-W is a step up, offering tighter control and, crucially, Wi-Fi connectivity. This isn’t just a gimmick; it’s about data.

The ability to monitor your cheese cave’s humidity from your phone is useful, but the real power is in the data logging. You can see the exact humidity cycles over days and weeks, allowing you to fine-tune your setup. Did that new humidifier create wider swings? Is the fridge’s defrost cycle drying things out too much? The Auber helps you answer these questions with hard data, not just guesswork.

This unit is for the cheesemaker who wants to understand the why behind their results. It allows for a much smaller humidity differential, keeping the environment incredibly stable. While it might be overkill for a simple cheddar, it’s an invaluable tool for someone trying to replicate the specific conditions needed for a tricky Camembert or a finicky Alpine cheese.

Johnson Controls A19AAT-2C: Built for Durability

Sometimes, digital precision is less important than bulletproof reliability. The Johnson Controls A19AAT-2C is an analog humidistat with a heritage in commercial refrigeration. It’s built to withstand the damp, cool conditions of a cheese cave for years without faltering. There are no digital screens to fog up or complex electronics to fail.

This is a single-stage controller, meaning it can control either a humidifier or a dehumidifier, but not both at the same time. You simply wire the device you want to control through the unit. Its simple mechanical dial is surprisingly accurate and holds its setting reliably. The visible coiled sensor provides a direct, physical response to humidity changes.

This humidistat is for the hobby farmer who prioritizes longevity and simplicity. If your cave is in a consistently dry or consistently damp location, you may only need to control one device anyway. The A19AAT-2C is a set-it-and-forget-it tool that will likely outlast the fridge it’s installed in.

Dayton 2UHG3: A Simple, Robust Analog Control

The Dayton 2UHG3 is another analog champion, prized for its robust, no-nonsense design. It’s a straightforward mechanical humidistat designed for agricultural and industrial settings, which makes it perfectly suited for the humid environment of a cheese cave. It features a simple dial for setting the desired humidity level and is built to handle the demands of frequent cycling.

Like the Johnson Controls model, this is typically a single-stage controller. Its primary advantage is its sheer toughness. The internal components are less susceptible to moisture damage than a delicate digital sensor. For a permanent, hard-wired installation in a walk-in cooler or a dedicated aging room, this kind of industrial-grade simplicity is a huge asset.

Choosing a unit like the Dayton is a vote for function over form. It won’t give you data logs or remote alerts, but it will reliably switch your humidifier on and off for a decade without complaint. It’s the right tool for someone who values rugged, long-term performance over modern features.

BN-LINK BNC-60: Accessible Digital Control

For those just starting to build a cheese cave, budget is often a major consideration. The BN-LINK BNC-60 offers the core functionality of a digital, plug-and-play humidistat at a very accessible price point. It provides a clear digital readout, dual outlets for a humidifier and dehumidifier, and simple programming for your target humidity and differential.

This unit makes effective humidity control available to nearly everyone. It may not have the heavy-duty build of an Auber or Johnson Controls, but for a small, protected setup like a dorm fridge, it’s more than adequate. It allows a new cheesemaker to experience the benefits of automated humidity control without a significant upfront investment.

Think of this as the perfect entry-level tool. It gets the job done and will dramatically improve your cheese aging results compared to no control at all. It’s a low-risk way to learn the ropes of environmental management before deciding if you need to upgrade to a more feature-rich or robust model down the line.

Key Humidistat Features for Your Cheese Cave

Choosing the right humidistat isn’t about finding the "best" one, but the one that best fits your needs. As you decide, focus on these core features and how they apply to your specific situation.

• Control Range and Accuracy: Most humidistats operate well within the 80-95% RH (Relative Humidity) range needed for cheese. More important is the accuracy and the differential (or hysteresis)—the humidity swing it allows before turning your equipment on or off. A tighter differential of 1-2% is great for sensitive cheeses, while a 3-5% swing is fine for most hard cheeses.
• Single vs. Dual Outlets: This is a critical decision. If your ambient environment is always dry, you may only need a single outlet for a humidifier. However, for most people, a dual-outlet model is the smarter choice. It gives you the flexibility to both add and remove moisture, adapting to seasonal changes without having to reconfigure your setup.
• Digital vs. Analog: Digital units offer precise setpoints and easy-to-read displays. Analog units offer simplicity and often superior durability in damp environments. A digital model is easier for beginners, while an analog unit might be preferred for a permanent, hard-wired installation where reliability is the top priority.
• Probe and Cord Length: This is a practical but often overlooked detail. Make sure the sensor probe’s cord is long enough to reach from your outlet to the ideal spot inside your cheese cave—typically in the middle, away from direct airflow from the humidifier or fridge fan.

Ultimately, your choice depends on your budget, the scale of your operation, and the types of cheese you plan to age. Start with what you need, and don’t be afraid to upgrade later as your passion and expertise grow.

In the end, a humidistat is a tool that helps you listen to your cheese. It translates the silent needs of a maturing wheel into simple on/off commands, creating the stable, nurturing environment that tradition demands. Choose the one that fits your cave and your philosophy, and you’ll be well on your way to crafting cheese with character and depth.