Mushroom farm automation: CO₂ and humidity control

Why it matters

Different stages of mushroom production need different CO₂ levels: high values such as 2,000–5,000 ppm during mycelium growth, and 800–1,200 ppm during fruiting. Holding these values by hand all day is almost impossible. Anka Sense S runs ventilation, humidification and heating by itself, day and night, according to the targets you set; when the stage changes, you only update the targets from your phone.

How Anka Sense measures and controls carbon dioxide is explained on our CO₂ measurement and controlpage, and how to monitor your facility from anywhere on our IoT remote measurement and control page.

Example target values by stage

The values below are commonly used example ranges; they vary with the mushroom species, the spawn and the compost. You enter your own values on the device.

Button mushroom

Stage	CO₂	Compost temperature	Room temperature	Humidity
Mycelium growth	2,000–5,000 ppm	24–26 °C	22–24 °C	90–95%
Pinning	below 1,000 ppm	18–20 °C	16–18 °C	90–95%
Harvest	800–1,200 ppm	17–19 °C	16–18 °C	85–90%

Oyster mushroom

Stage	CO₂	Temperature inside the bag	Room temperature	Humidity
Mycelium growth	5,000 ppm and above	24–27 °C	20–24 °C	85–95%
Pinning	below 1,000 ppm	Close to room temperature	12–16 °C	90–95%
Harvest	below 1,000 ppm	Close to room temperature	14–20 °C	85–90%

CO₂, room temperature and humidity are measured by the Anka Sense Kit-1; the temperature inside the compost or the bag is measured by the external temperature sensor.

Recommended products

Frequently asked questions

Which set suits a mushroom farm?

We recommend the Anka Sense S Set 2. Because humidity in mushroom farms is very high, the Anka Sense Kit-1 in the set is protected against condensation by a plastic gasket and a cable gland. The external temperature sensor is pushed into the compost and measures the temperature inside it.

I have several rooms; how should I set them up?

Use a separate Anka Sense S Set 2 for each room. Each room then runs on the targets of its own stage, and you can monitor and adjust each one separately from your phone.

How do I change the settings when the stage changes?

You can change the target values at any time on the device screen or in the mobile app. The device holds the targets you entered until you change them; it does not switch between stages by itself on a calendar.

Does it work with my existing fan and humidifier?

Yes. Anka Sense S switches your existing equipment on and off through its relay outputs. For high-power 220 V / 380 V equipment, the Anka Sense S Panel, which includes contactors and fuses, is used.

What happens if the internet goes down?

Control runs inside the device; measurement and relay control continue even without internet. When the connection returns, you can follow the values from your phone again.

Is installation difficult?

The sensor kit connects to the device with an RJ45 cable and is powered by it. You only need to mount the device, connect the 24 V DC supply and complete the Wi-Fi settings. For the electrical connection of equipment such as fans and humidifiers, we recommend getting help from an electrician.