Mushroom Cold Room: An Industry Guide for Mushroom Growing Environments

Introduction: Why Mushroom Growing Requires Specialized Cold Rooms

Unlike conventional food storage, mushroom cultivation depends on precise environmental control rather than simple refrigeration. Temperature, humidity, fresh air exchange, and CO₂ concentration must work together to support different growth stages.

A professionally designed mushroom cold room creates a stable microclimate that enables predictable yields, consistent quality, and scalable production. For commercial growers, agricultural investors, and facility engineers, a purpose-built mushroom growing cold room is a critical infrastructure component rather than a standard cold storage room.

How a Mushroom Cold Room Works

Environmental Control Instead of Pure Cooling

A cold room for mushroom growing integrates multiple systems into a single controlled environment:

• Refrigeration system for temperature regulation

• Humidification system to maintain high relative humidity

• Fresh air and exhaust ventilation

• CO₂ concentration management

• Intelligent control system

Unlike frozen or chilled storage, the system continuously balances heat load from biological activity, lighting (if used), and outside air exchange.

Mushroom Growing Temperature & Humidity Explained

Typical Climate Requirements (By Growth Stage)

• Incubation stage:

  • Temperature: 22–25°C

  • Relative humidity: 65–75%

• Fruiting stage:

  • Temperature: 12–18°C

  • Relative humidity: 85–95%

• Harvest & holding:

  • Temperature: 2–5°C

Maintaining stable conditions inside the mushroom cold room prevents deformation, slow growth, and contamination.

Core Features of a Commercial Mushroom Growing Cold Room

1. High-Performance Insulated Structure

• PU or PIR insulation panels

• Typical thickness: 75–100 mm

• Moisture-resistant and mold-resistant finishes

2. Precision Temperature Control System

• Medium-temperature refrigeration units

• Variable capacity control

• Even temperature distribution across growing racks

3. Humidity & Moisture Management

• Ultrasonic or high-pressure humidifiers

• Condensation control strategies

• Anti-drip ceiling design

4. Fresh Air & CO₂ Control

• Adjustable air exchange rates

• CO₂ sensors and exhaust fans

• Balanced pressure control

5. Centralized Control System

• Digital PLC or controller-based management

• Temperature, humidity, and CO₂ monitoring

• Alarm and data logging functionality

As an experienced solution provider, hengliangcooling focuses on integrating these subsystems into a coordinated environment rather than treating them as isolated components.

Typical Configuration of a Cold Room for Mushroom Growing

A commercial mushroom cultivation cold room generally includes:

• Modular cold room enclosure

• Ceiling-mounted evaporators

• Dedicated humidification units

• Fresh air intake and exhaust system

• Multi-layer growing racks

• Central control panel

System design is based on mushroom species, growing cycle, room volume, rack density, and regional climate conditions.

Key Technical Parameters (Reference)

Main Application Scenarios

Commercial Mushroom Farms

• Button mushrooms

• Oyster mushrooms

• Shiitake and specialty varieties

Agricultural Research Facilities

• Controlled growth experiments

• Yield optimization projects

Integrated Agri-Industrial Projects

• Automated mushroom production lines

• Export-oriented growing operations

hengliangcooling has delivered mushroom growing cold room systems across these scenarios, adapting designs to crop type, production scale, and local environmental conditions.FAQ: Mushroom Cold Room & Growing Systems

What is the ideal temperature for mushroom growing?

Most mushrooms fruit between 12°C and 18°C, depending on species and growth stage.

Is a standard cold storage room suitable for mushrooms?

No. Mushroom cultivation requires humidity, airflow, and CO₂ control, not just cooling.

How is humidity controlled in a mushroom cold room?

Humidity is maintained using dedicated humidifiers combined with airflow and condensation control strategies.

Can one cold room support multiple mushroom species?

Yes, but only with adjustable control systems and proper zoning.

Professional Hengliang Cooling

Designing a high-performance mushroom cold room requires precise coordination between refrigeration, humidity, ventilation, and control systems.

hengliangcooling provides professional mushroom growing cold room solutions, offering customized design, integrated system engineering, and full project execution support.
Contact the hengliangcooling technical team to discuss your mushroom cultivation requirements and receive a tailored technical proposal and quotation.