
Building a mushroom cabin, also known as a mushroom growing house or mushroom fruiting chamber, is a controlled process that involves creating an environment with the right humidity, CO2 levels, temperature, and lighting to facilitate mushroom growth. This process can be done in various spaces, from a spare room in your house to a backyard shed, and even purpose-built structures. The key components include the structure itself, shelving for maximizing space, and equipment to control humidity, temperature, lighting, and ventilation. Mushroom growing houses offer benefits such as increased yield, year-round cultivation, and flexibility in terms of space. However, they also come with challenges, requiring initial setup and ongoing maintenance to ensure ideal conditions for mushroom growth.
| Characteristics | Values |
|---|---|
| Purpose | To create a controlled environment with the perfect conditions for mushrooms to thrive, including optimal temperature, humidity, and air exchange. |
| Benefits | Precise control over growing conditions, ability to grow mushrooms year-round regardless of outdoor weather, and space flexibility. |
| Challenges | Requires initial setup and ongoing maintenance to ensure ideal conditions are maintained. |
| Location | Dedicated room in a home, shed in the backyard, or a purpose-built structure. |
| Structure | Purchased hydroponics tent or DIY setup with a wooden structure lined with plastic. |
| Shelving | Crucial for maximizing space and accommodating different mushroom types; adjustable shelving is recommended. |
| Lighting | Mushrooms require some light, so proper lighting equipment is necessary. |
| Ventilation | Fans or other ventilation systems are essential for good air exchange. |
| Automation | Automating temperature, humidity, and light control can simplify maintenance. |
| Size | Depending on the scale, a size of 25 feet by 15 feet (8 meters by 5 meters) is recommended for commercial operations. |
| Humidity | Aim for 90% humidity, achievable through humidifiers, heaters, and walls that retain moisture (e.g., glass panel walls). |
| CO2 Levels | High CO2 levels are preferred by some mushrooms, such as Oyster mushrooms. |
| Temperature | Stable temperatures are crucial; some mushrooms are sensitive to temperature swings. |
| Airflow | Good airflow or FAE (Fresh Air Exchange) is necessary for proper fruiting. |
| Light | Good lighting is important, contrary to the popular belief of keeping mushrooms in the dark. |
| Materials | Wooden stud frame with plastic sheeting, insulated fridge panels, or recycled refrigeration shipping containers. |
| Cleanliness | The growing area should be easy to clean and regularly maintained to minimize contaminants like mold. |
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What You'll Learn

Choosing the right location and design
The first step is to decide on the size and design of your mushroom-growing house. This will depend on the scale of your operation and the amount of mushrooms you want to grow. If you're just starting out, it's recommended to begin with a smaller setup and expand as your expertise increases. You can choose to convert a spare room in your house, a backyard shed, or build a new structure specifically for mushroom cultivation. Consider the amount of space you'll need for your mushrooms, equipment, maintenance, and harvesting.
The type of mushrooms you plan to grow will also influence your location and design choices. Different mushroom varieties have specific requirements for temperature, humidity, airflow, and lighting. For example, Oyster mushrooms prefer a lot of fresh air and will produce smaller caps in a high CO2 environment, whereas Lion's Mane is more sensitive to temperature and humidity fluctuations. Understanding the needs of your mushrooms will help you create the optimal environment for their growth.
When selecting a location, it's important to consider the environmental conditions you need to replicate for your mushrooms. Mushrooms thrive in high-humidity environments, so choosing a space that can withstand these conditions is crucial. Setting up your growing house on a concrete floor with a drain nearby is recommended, as the damp conditions will damage wood, drywall, and most common building materials over time. Additionally, ensure your location is clean, secure, and has adequate ventilation to maintain the necessary airflow.
The design of your mushroom-growing house should also incorporate ways to automate and control the growing conditions. This includes temperature, humidity, and light control, which can make maintaining the optimal environment much easier. Consider using adjustable shelving to accommodate different types of mushrooms and maximize your space efficiently. Additionally, think about the layout of your equipment, such as fans, lighting fixtures, and humidifiers, to ensure they work effectively together.
By carefully considering the available space, the needs of your mushrooms, and the environmental conditions required, you can choose the right location and design for your mushroom-growing house, setting yourself up for successful and abundant mushroom cultivation.
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Gathering materials and equipment
The materials and equipment you will need to build a mushroom growing house depend on the design and location you have chosen. If you are using a spare room in your house or a backyard shed, you will not need to gather materials for the structure itself, but you will still need to prepare the space. Ensure the location is clean, secure, and suitable for installing your mushroom-growing equipment.
If you are building a custom structure, you will need building materials such as wood, plastic sheeting, or insulated fridge panels. You can also recycle refrigeration shipping containers or use a hydroponics tent. The structure should be sturdy, waterproof, and adequately insulated to withstand the high humidity levels necessary for mushroom growth.
Shelving is crucial for maximizing space in your mushroom-growing house. Consider adjustable shelving to accommodate different types of mushrooms. The shelving should be strong enough to hold the weight of your mushroom containers and arranged to make the most of the available space.
To create the optimal environment for mushroom growth, you will need equipment to control temperature, humidity, and lighting. This includes a humidifier, temperature control equipment, and lighting fixtures. Fans or other ventilation systems are also necessary to ensure good air exchange. Automating elements like temperature, humidity, and light control can make maintaining your mushroom-growing house easier.
Finally, gather any additional materials and equipment specific to your mushroom-growing setup. This may include reusable containers like buckets and jars, or materials for creating a substrate for your mushrooms to grow in, such as sawdust, straw, spent coffee grounds, or pasteurized substrate.
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Creating the right environment
Temperature stability is crucial for mushrooms. They require consistent temperatures, with some varieties preferring hot and others cold, but all needing a stable environment once they start fruiting.
High humidity is also essential. Mushrooms thrive in 90% humidity, and this can be achieved through various means. One effective method is to use a centrifugal humidifier, which can be mounted at the top of the growing chamber to ensure even distribution of moisture. Glass panel walls are another way to maintain humidity while also allowing for good airflow.
Mushrooms need a good amount of fresh air exchange, also known as FAE in mushroom terminology. This can be facilitated through fans or ventilation systems, ensuring a constant supply of fresh air while managing the humidity levels.
Lighting is another critical factor. While mushrooms don't require as much light as plants, they do need some light to fruit properly. Aim for lighting that mimics normal daylight hours.
The growing structure itself should be sturdy, waterproof, and adequately insulated. It should be designed for easy cleaning and maintenance, as it will need to be regularly sanitised to prevent mould and other contaminants.
Additionally, consider the size of your growing space and the amount of mushrooms you plan to cultivate. Ensure there is sufficient room to navigate, harvest, and store equipment. Adjustable shelving can be beneficial to accommodate different mushroom types and sizes.
By controlling these environmental factors, you can create the ideal conditions for your mushrooms to thrive.
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Automation and maintenance
Automation plays a crucial role in maintaining the optimal conditions for mushroom growth. By automating temperature, humidity, and light control, you can create a stable environment that promotes mushroom growth. This can be achieved through various means, such as installing automation systems that monitor and adjust these factors accordingly.
For example, temperature control equipment can be automated to maintain the desired temperature range, as some mushrooms prefer warmer conditions, while others thrive in cooler environments. Similarly, humidity levels can be automated using humidifiers and dehumidifiers, ensuring the mushrooms receive their required 90% humidity.
Lighting is another essential factor, and while mushrooms don't require as much light as plants, adequate lighting equipment should be automated to provide the necessary light during their fruiting stage. Additionally, good air exchange is vital, and this can be automated through the use of fans or ventilation systems, ensuring proper airflow and CO2 levels.
Maintenance of your mushroom-growing setup is also key to ensuring optimal conditions. Regular cleaning is necessary to minimize contaminants such as mould, and the structure should be inspected for any leaks or damage, especially in high-humidity environments, which can deteriorate certain building materials over time.
Furthermore, ongoing maintenance involves monitoring and adjusting the growing conditions to cater to the specific needs of the mushrooms. Each mushroom variety has unique preferences for temperature, humidity, airflow, and light, so experimentation and careful attention to their growth patterns are crucial. By observing and adjusting the parameters, you can optimize the environment for each type of mushroom, leading to consistent and high-quality yields.
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Different types of structures
There are several different types of structures that can be used as mushroom growing houses, each with its own set of advantages and considerations. Here are some of the most common types:
Hydroponic Tents or Grow Tents:
Hydroponic tents are pre-made structures that can be purchased and set up easily by following the manufacturer's instructions. They are designed to provide a controlled environment for growing mushrooms and can be an excellent choice for those who want a straightforward option. These tents offer the benefit of being relatively quick to assemble and can fit in various spaces, making them accessible to many home growers.
DIY Wooden Structures:
For those who prefer a more hands-on approach, building a custom wooden structure lined with plastic is an option. This type of setup allows for more customization in terms of size and design. It can be tailored to fit the specific needs of the grower, including adjustable shelving to accommodate different types of mushrooms. However, it requires more initial setup and ongoing maintenance to ensure ideal conditions for mushroom growth.
Mushroom Fruiting Chambers:
Mushroom fruiting chambers are enclosed spaces designed to mimic the natural environment in which mushrooms thrive. They are often built with wooden stud frames covered in plastic sheeting or insulated fridge panels. Fruiting chambers aim to create high humidity conditions, typically above 90%, and may include features like glass panel walls to retain humidity while allowing for airflow. These chambers can be set up in various locations, including back porches or indoor rooms, and are known for producing high-quality mushrooms consistently.
Mini Greenhouses (Martha Tents):
For those starting with mushroom cultivation, a mini greenhouse, also known as a Martha tent, is a great option. These small structures come in various sizes and can be placed in different environments to learn what works best for the mushrooms. They are a low-cost way to experiment with growing conditions before investing in a larger setup.
Off-Grid, DIY Mushroom Fruiting Houses:
For a more sustainable and creative approach, some growers opt for building off-grid DIY fruiting houses using scrap materials. This method aims to minimize energy inputs and technology while still providing the necessary conditions for mushroom growth. Growers may source materials from landfills or recycle refrigeration shipping containers to create their growing spaces.
Each type of structure has its advantages and considerations, and the choice depends on factors such as scale, available space, desired level of customization, and budget. It's important to understand the specific needs of the mushrooms you plan to grow and select a structure that can provide the necessary conditions for their optimal growth.
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Frequently asked questions
A mushroom growing house, often referred to as a mushroom grow tent, is a controlled environment specifically designed to meet the needs of growing mushrooms. It provides the perfect conditions for mushrooms to thrive, including optimal temperature, humidity, and air exchange.
You will need a hydroponic tent or building materials for your structure, shelving, a humidifier, temperature control equipment, lighting, fans for ventilation, and automation systems.
Mushrooms require specific humidity, temperature, and CO2 levels to grow. While mushrooms don't need as much light as plants, they do require some light. A good air exchange is also vital for mushroom growth.
Decide on the size and design of your mushroom cabin, depending on the scale of your business and the amount of mushrooms you want to grow. Choose the right location for your mushroom cabin, considering the available space and the environmental conditions required by the type of mushrooms you plan to grow.

























