How to Build a Martha Tent Mushrooms – Easiest Steps

To help anyone who is interested in studying Martha tek or the Martha method for mushroom cultivation, we have produced this extensive Martha tent Fruiting Chamber Mushroom installation and maintenance tutorial. It has specific instructions for building a Martha environment, setting up and fine-tuning environmental controls (moisture, air flow, gas exchange, and spore filtration), and a manual for identifying your growth  issues.

What Exactly is a Martha Tent or Martha Tek?

What exactly is a Martha Tent or Martha Tek

“Martha Tent” is a medium sized grow chamber that is used for fruiting mushrooms in jars, blocks and trays within an efficiently controlled environment.

To grow mushrooms all year, Martha setups are the most dependable method. Martha Tent potential is unparalleled as they are adaptable to meet any financial or space requirements. They may just be sloped upto produce pounds of edible or medicinal mushrooms for the harvesting continuously each week.

They are an excellent option for mushroom producers, from novice to experienced, working with a variety of species, growth methods, regions, and budgets. The step-by-step process to build martha Tent are given below;

How to Construct a Martha Tent

For groeing mushrooms inside, Martha Tents are one of the best methods. Very few from the hundreds of Martha Tent Construction guide from Google any mushroom forum, Reddit topic, or Facebook group are identical. The skill to optimize four conditions; moisture, fresh air exchange, temperature, and light—is credited by those who have had success cultivating mushrooms, despite the fact that Martha Tents may come in a variety of forms and dimensions.

Overall, it is an equalization act that can only be succeeded if all the four conditions are optimized and working together. The outer environment of the tent decides the temperature and light settings, while Martha Tents regulates moisture and fresh air interchange (for releasing carbon dioxide).

  • Moisture: In dry atmosphere mushroom will dry out or can result in not fruiting. So, to keep the appropriate humidity in the Martha Tent monitoring the moisture your dehumidifier and humidity regulator will therefore disperse.
  • Fresh Air Interchange: Mushrooms breath in Oxygen and breathe out Car dioxide just like humans. Our fresh air exchange fan enables oxygen to freely flow throughout the tent and also exhausts the surplused carbon dioxide. The irregular air flow might result in suffocation of mushrooms.
  • Temperature: It is advised to pitch your tent in a climate-controlled area. When the outside temperature of your tent is below 55 degrees Fahrenheit, some designs may use heat packs or hot water diffusers. 55-80 degrees Fahrenheit temperature is the optimized temperature for most of the mushrooms to produce fruit.
  • Light: Mushrooms do not need the process of photosynthesize as plants do. Yet, for them to fully fruit, there must still be some ambient sunlight. Your mushrooms will be able to select where to fruit and the colour of their fruit bodies by placing your tent in a place with ambient lighting or extra lighting.

If you correctly take care of all four of these circumstances, you will get gorgeous mushrooms in no timeframe

Martha Tent Mushrooms Materials

Step 1: Constructing the Tent

Making your greenhouse tent is the first stage. It is better to choose a greenhouse tent that comes with five shelves; alternatively, we advise you to eliminate the bottom shelf and put it at the top. To preserve the structural integrity, you should strengthen the tent’s bottom, if you are interested in doing so. (Some growers prefer a stealth opaque tent while we went with a clear tent. As long as you add additional illumination at the conclusion of the construction process, opaque tents function equally well.)

We focus on to add additional rack at the top there are a couple of reasons;

  • Your tent has maximized total grow tent inside it.
  • There is space for humidifier at the bottom.
  • And at last, your fresh air exchange fan will place at the top, helping to pull humidity through the tent and exhaust CO2.

After building your greenhouse tent, you’ll want to put it on the top of a drip tray. This drip tray will capture any excess moisture and help seal. As an alternate, you can simply use a folded trap if you aren’t able to find a drip tray.

Step 2: Setting up the Humidification System

Setting up your humidifier system is the next step. Utrasonic humidifier and the humidity controller both would be  needed. These will be used to measure and manage the ambient humidity within the Martha Tent.

With the electrical wires strung under the lower part of the nursery plastic, the ultrasonic humidifier will be put at the lower part of the ten. Ensure that any electrical part doesn’t have direct contact with water & isn’t sitting in the trickle plate. Expert tip: In the event that you choose to utilize the bottom shelf, make a point to not put any mushrooms in the immediate line of the humidifier. This will guarantee dampness is scattered uniformly all through the tent and that your mushrooms are not oversaturated with water.

You can open up your moistness regulator and position the sensor on the first rate, after you’ve set your humidifier at the lower part of the tent. Preferably, to avoid the humidifier’s fog the sensor is put slightly to the side. This guarantees a more exact perusing of the typical mugginess range within your tent. Make a point to string the wire down the rear of the tent and under the nursery plastic.

Place the humidity controller outside the tent, then plug the sensor and humidifier into it.

Follow the particular directions of your stickiness regulator for use.

To make typical humidity around 85% begin by setting a high level of humidity of 90% (meaning the framework will switch off when it hits 90%) and the low level of humidity to 70% (meaning the humidification framework will turn on when dampness drops to that level), which functions admirably for most of growers. your If your mushrooms are giving indications of being either excessively dry or excessively wet make changes on a case-by-case basis in the event. We’ll go over the side effects of the two circumstances toward the finish of this article.

On the other hand, you might see a few growers utilize an outer humidification framework that looks something like this:

This is a Do-It-Yourself humidification framework that utilizes a lake fogger to produce dampness within the receptacle, while a PC fan pushes the stickiness through a channel and into the tent. To make this framework, cut two openings into the top of a Tupperware receptacle with one opening measured to fit a PC fan and the other estimated to fit 4-inch ducting. Position the PC fan to drive air into the container. Join both the ducting and fan to the top with channel tape. Within the container the pond fogger has a float ring that permits it to sit on top of the water. String the power line out through the top and fitting it into an outlet. You should cut an extra 3.5-4-inch opening into your nursery plastic close to the lower part of the tent. String your 4-inch ducting through the opening and secure it with conduit tape.

Albeit this framework takes care of business, there are a couple of downsides.

However, this framework gives a huge supply to water, pond foggers aren’t especially dependable and will quite often have genuinely short life expectancies. Thus, we like to utilize the ultrasonic humidifier and top off it more regularly. This really depends on your very own inclination.

Step 3: Install the Natural Air Exchange Fan

The third step is to introduce your outside air trade fan. Since you’re depleting air out of your tent, you’ll make what is known as a negative strain framework. You’ll be making a vacuum inside the tent. In a positive tension framework, you’d drive natural air into the tent making it swell outwards, however this accompanies the disadvantage of losing the capacity to coordinate spores and dampness out of a conduit or through a channel.

However, you’ll see positive strain fabricates somewhere else on the web, we lean toward negative tension frameworks for a couple of reasons:

  1. You’re ready to debilitate spores and CO2 beyond the tent
  2. Oxygen rich air is pulled in from the lower part of the tent as the air is separated through the natural air trade fan.

Under the lower part of the nursery plastic, run the wires down the back. Essentially put your fan on the first rate, with the exhaust end confronting the rear of the tent.

Since you’ll modify your tent to develop mushrooms, you’ll have to cut an opening toward the rear of the tent that is sufficiently large to accommodate your fan, however little enough to make a tight seal. With a sharpie follow within your natural air trade fan on the plastic of the tent, and afterward cut it out with some scissors.

Your fresh air exchange fan should be able to balance upright on the top shelf at this point. Tenderly aide your fan through the opening when you make an opening for your fan.

The last step is to join a channel to the rear of your outside air trade fan to catch any overabundance spores so they don’t saturate your living spaces. You can utilize a 4-inch hose brace to connect your channel to the back.

Whenever you’ve connected the channel, you currently have a completely working Martha Tent. Albeit this form works perfectly inside shut spaces without admittance to a window, you can likewise decide to pipe your spores outside a window on the off chance that one is accessible utilizing flex foil ducting

Step 4: Pipe from a Window (Discretionary)

Utilizing ducting to deplete the air beyond your Martha Tent is smart when there is a window free and your tent is put in a home or residing space. This is likewise smart for individuals who might be delicate to spores or particulates in the air.

It is genuinely easy to Construct a channel. By setting your Martha Tent close to a window (out of direct daylight), you can join a 4-inch channel to the rear of the natural air trade fan, and seat the finish of the pipe through a fitted piece of froth. Make certain to eliminate any channels before establishment.

Furthermore, presto! You’ve wrapped up building your own special Martha Tent!

Setting up The Martha Tent

As we talked about before, mushrooms depend on the fine harmony between: outside air trade, stickiness, temperature, and light.

Somehow or another, the unique collaboration between these circumstances make mushroom growing a mix of workmanship and science.

In the video instructional exercise, we put our tent in an environment controlled out-building away from direct daylight. Our spores and CO2 were ducted outside with the natural air trade fan – and our humidification framework will keep up with legitimate dampness content within our tent.

The position of your tent might change relying upon your set-up, yet this set-up can be duplicated in a large number of ways with a couple of minor changes.

Natural Air Trade

  1. Mushrooms breathe in oxygen and breathe out carbon dioxide, Very much like people.
  2. Since the Martha Tent is a fixed climate, without legitimate outside air trade carbon dioxide might develop inside your tent and choke out your mushrooms.
  3. Introducing an outside air trade fan permits you to deplete overabundance CO2 and keep up with legitimate degrees of oxygen.

On the off chance that you place plate of colonized mushroom mycelium within a shut tent with no changes or fans for air trade, your mushrooms would ultimately choke because of high CO2 and absence of oxygen. This is on the grounds that very much like people, mushrooms breathe in oxygen while breathing out CO2.

Without continually reviving the air in the tent, the breathed-out CO2 will develop and disturb the mushroom developing cycle. Therefore, we introduced our outside air trade fan. You can likewise utilize a carbon dioxide meter to get exact estimations of CO2 fixations, however this isn’t required the same length as you watch out for your mushroom development, recognize side effects of high CO2 (absence of development, leggy stems, or coral like development), and change as needs be.

Lower levels of CO2 help demonstrate where a mushroom ought to fruit in the wild. Inside you develop tent, a wealth of outside air will make the similar end result. However, simply having extraordinary air trade won’t ensure delightful flushes of mushrooms. Without a framework for overseeing surrounding dampness your mushrooms will ultimately become brown, break, or dry out because of excessively dry air.


  1. Moistness ranges between 70-90%, it you’re developing to rely upon the species.
  2. Mushrooms might dry out or never develop assuming the climate needs legitimate stickiness
  3. On the other hand, mushrooms that are oversaturated with mugginess might become spongy or have fluffy stems.

Moistness is the following condition oversaw by your Martha Tent that impacts mushroom development.

Mushrooms are around 92% water, and hence, mycelium in the wild will hold on until precipitation or moist circumstances to deliver mushrooms. Thus, alongside a natural air trade fan, mushroom cultivators will add humidification frameworks in their tent to keep mushrooms from drying out or not developing by any means.

Natural air trade and humidity frameworks are the two essential parts you’ll add to your Martha Tent. In any case, you’ll in any case need to represent the surrounding conditions beyond your tent.


The optimized temperature for most mushrooms should be from 55-80 Fahrenheit.

Indeed, even with a completely constructed Martha Tent, most cultivators place their tents in regions that have some type of environment control. No matter what the area you’ll need some command over the temperature encompassing your developing climate.

Under normal circumstances, many mushrooms will organic product in light of irregularity, restricting the time span in which mushrooms develop. Developing mushrooms inside all year requires more steady circumstances.

Your tent ought to be set in a climate that by and large stays between 55-80 degrees Fahrenheit. However remember that the specific reach will in general differ between mushroom species.


  1. Mushrooms don’t involve light as an energy source unlike plants. However, they truly do require a light to figure out where they will leafy foods beautiful natural product bodies.
  2. Roundabout light from a window or counterfeit even the littlest measure of light will work.
  3. It’s for the most part encouraged to not put mushrooms in that frame of mind as it might raise the substrate, or developing chamber, to unsafe temperatures.

Dissimilar to plants, mushrooms don’t involve light as an energy source to develop. Yet, mushrooms are photosensitive; meaning the littlest measure of light decides the shape and shade of the mushroom organic product bodies. Light can likewise set off mushroom development or show reasonable fruiting conditions. On the flipside, a lot of direct daylight can make your mushrooms dry out or make it harder to control your different circumstances.

Cultivators who place their Martha Tents in conditions that need light, for example, a storage room, will utilize supplemental lighting. Producers who place their tents in open residing spaces will for the most part situate it in a space away from direct daylight.

Thus, outside air trade, mugginess, temperature, and light are the four states of mushroom developing. By adjusting each of the four, you can natural product delightful flushes of mushrooms all year


The most ideal way to oversee and change the circumstances in your Martha Tent, is to see the way that your mushrooms develop after some time.

High CO2 Levels

Assuming you have thin stems, or natural product bodies, or development looking like coral, it very well may be on the grounds that the carbon dioxide levels are excessively high.

Extreme CO2 or Dampness

Assuming that you have fluffy stems, the reason could be over the top carbon dioxide or dampness.

Low Stickiness or Gather Late

Assuming your covers are brown or broken, it may be the case that there’s insufficient mugginess or that they were collected past the point of no return.

High Temperature or Low Lighting

In the event that the fruiting bodies are pale, it very well may be a direct result of a high temperature or in view of a low light climate.

High CO2 Levels, High Temperatures, Excessively Dry, or Substrate Was Not Completely Colonized

Assuming there was no development by any means, it very well may be a result of high carbon dioxide, high temperatures, or on the grounds that your substrate wasn’t completely colonized, or on the grounds that your substrate was excessively dry.

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