PF Tek - The Ultimate Guide For Mushroom Growing (2024)

Inoculating your sterile BRF cakes with mycelium is a critical step in mushroom cultivation. This process, known as inoculation, requires precision and attention to detail to ensure the success of your mushroom growing endeavor. Let’s walk through the steps:

Materials Needed

  • Sterile BRF cakes
  • A syringe of mushroom liquid culture
  • A lighter or alcohol lamp
  • A clean cloth or paper towel soaked in isopropyl alcohol
  • A sterile environment (like a still air box or a clean, disinfected work surface)

Procedure

5.1. Prepare Your Environment

Start by making your workspace as sterile as possible. This reduces the risk of contamination. If you’re not using a still air box, thoroughly wipe down your work surface and tools with a cloth or paper towel soaked in isopropyl alcohol.

5.2. Sterilize Your Syringe

Shake the syringe containing the liquid culture to evenly distribute the mycelium. Next, use a flame to sterilize the needle of the syringe until it glows red-hot. Let it cool for a few seconds afterwards.

5.3. Inoculation

Find the self-healing injection port on your jar lid. Using the sterilized syringe, carefully inject 1-2ml of liquid culture into the jar through the port. Ensure the needle doesn’t touch any non-sterile surfaces to prevent contamination.

5.4. Repeat the Process

Continue inoculating each of your BRF cakes, flame-sterilizing the needle between each jar. Maintaining cleanliness throughout this process is crucial.

5.5. Store the Jars

After inoculating all your cakes, store them at a temperature appropriate for your mushroom species, usually between 70-75°F. You should expect to see mycelium growth within a week or so.

Congratulations on completing the inoculation process! Patience is now key as you wait for the mycelium to colonize the BRF cakes. Remember, mushroom cultivation is a test of patience, but the results are immensely rewarding. Soon, you’ll be able to witness the fruits of your labor!

As your BRF cakes are fully colonized and ready after their dunking and rolling in vermiculite, it’s time to move them into their new habitat for fruiting – the Shotgun Fruiting Chamber (SGFC). The SGFC gets its name from the multitude of holes punctured throughout the chamber, resembling the scatter pattern of a shotgun blast. These holes play a vital role in maintaining proper conditions for mushroom fruiting.

7.1. Setting Up the Cakes

Place the cakes on sterilized lids or small squares of aluminum foil. This step is important to prevent the cakes from sitting directly on the damp perlite layer at the bottom of the chamber. Make sure to space the cakes adequately to ensure good air circulation around each one.

7.2. Misting

Gently spray a mist of water onto the sides of the chamber and lightly over the cakes. The goal is to create a fine, dew-like mist without soaking the cakes. Overwatering can lead to adverse conditions for the mushrooms, so aim for a light and even mist.

7.3. Fanning

Fanning is essential for introducing fresh air into the chamber and should be done at least twice daily, especially after misting. Use the lid of the chamber or a piece of cardboard to gently fan fresh air inside. This process helps to replace the carbon dioxide-heavy air inside the chamber with fresh oxygen, which is vital for inducing the mushrooms to pin (start the initial stage of fruiting).

The design of the SGFC, with its array of holes, naturally facilitates air exchange, which is crucial in simulating the mushrooms’ natural growing conditions. This air exchange is key to removing carbon dioxide and supplying fresh oxygen to your growing mushrooms.

Additionally, the SGFC aids in maintaining high humidity levels, another critical factor for mushroom growth. The damp perlite at the bottom of the chamber slowly releases moisture, helping to keep the humidity within the chamber at an ideal level.

In summary, the SGFC is an efficient and effective way to provide your mushrooms with the balanced environment they need to thrive. It simplifies the process of maintaining the optimal conditions of fresh air exchange and humidity, vital for a successful mushroom yield. With your SGFC set up correctly, you’re well on your way to a bountiful mushroom harvest. Enjoy the fruits of your labor in your very own mushroom zen garden!

PF Tek - The Ultimate Guide For Mushroom Growing (2024)

FAQs

What is the best substrate for PF Tek? ›

Once you have all your supplies, the next step is to prepare your mushroom substrate. PF Tek uses a substrate mix of 2 parts vermiculite, 1 part water and 1 part brown rice flour (BRF). Measure out the vermiculite, brown rice flour and water for the number of jars you want to fill.

How long to sterilize PF Tek? ›

Pressure cooking is recommended over boiling to sterilize the substrate. With 300-600ml (1/2 pint to 1 pint) jars, 50-65 minutes at 15 psi is perfect. User longer times for bigger jars.

How do I get the most out of my mushroom grow kit? ›

Give your block some fresh air

Leaving the plastic on your kit helps to keep moisture in, preventing the block from drying out. Feel free to spray it periodically when it's looking parched as you would inside. After a couple of weeks, you should expect mushrooms after heavy rainfall or after a big temperature shift.

What does PF stand for in PF Tek? ›

What Is PF Tek? The PF Tek, short for Psilocybe Fanaticus Technique, emerged in the late 20th century as an innovative and cost-effective method for cultivating mushrooms at home. It has significantly impacted the mushroom cultivation community since its introduction, and we're here to distill its key aspects for you.

How long after inoculation should I see mycelium? ›

Colonization occurs after inoculation. This is when the mycelium will start to take over the grain that was inoculated with spores. This period usually lasts between 3 to 6 weeks depending on strain and environmental conditions.

Can you use peat moss as mushroom substrate? ›

"Peat moss remains the primary component for casing layers in the cultivation of mushrooms. Peat moss is combined with limestone and other materials to induce mushroom pinning and development. Fibrous peat works well to hold large amounts of water.

Can you over sterilize mushroom substrate? ›

If the blocks are sterilized for too long, they may become over-sterilized. After sterilization, it's important to let the substrate cool before inoculation, which can take up to 8 hours.

How often do you sterilize? ›

You should clean bottles, nipples and other feeding items after every use and sanitize them at least once daily if your baby is under 3 months old, was born prematurely, or has a weakened immune system because of an illness or medical treatment (like HIV, cancer or chemotherapy for cancer), according to the Centers for ...

What speeds up mushroom growth? ›

Gypsum is a mineral that helps speed up the mushroom growing process in small amounts. A teaspoon of gypsum is added to the supplemented sawdust mix, which also includes hardwood sawdust pellets, wheat bran and water.

Can I reuse mushroom substrate? ›

You may use spent substrate weathered for 6 months or longer in all gardens and with most plants. Obtaining spent substrate in the fall and winter, allowing it to weather, will make it ready to use in a garden the following spring. Spring and summer are the best time to use weathered material as a mulch.

How clean does a mushroom grow room need to be? ›

Keeping Your Growroom Clean

Without dust and particles in the air, your mushrooms will be able to breathe and process their nutrients much more efficiently. In a mushroom cultivation cleanroom, the primary and best way of filtering and sterilizing the air will be through the use of HEPA filters.

Does mycelium grow faster in the dark? ›

A commonly held belief among growers is that mycelium will grow faster in total darkness. There is no data to support this premise; however, significant exposure to direct UV light from the sun can be detrimental. Light is a secondary trigger for initiating fruiting bodies.

What is the substrate for PF Tek? ›

The substrate is what the fungus will feed off of. It will consist of brown rice flour, vermiculite and water. First, take the dry ingredients and mix them in a bowl. After they are well mixed add the water.

Who created PF Tek? ›

The PF Tek ("Psilocybe Fanaticus technique") is a technique or recipe for growing mushrooms using brown rice flour, vermiculite, and half-pint mason jars. The growing method was developed and first made public in 1992 by Robert McPherson aka Psylocybe Fanaticus.

What is the best substrate for mushroom bags? ›

Hardwoods such as oak, beech and maple make for a great substrate for many types of mushrooms, especially when combined with a bran supplement. Soy hulls can be mixed with hardwood sawdust at different ratios to produce extremely effective and high yielding substrates, particularly for growing oysters.

What is the best substrate for a Monotub? ›

Best is manure that has been composted for at least 6 months. At this point you can either pasteurize your bulk substrate by cooking it in an oven or steaming it. You'll need to mix the two ingredients together and hydrate the mixture to 'field capacity.

What is the best soil for mycelium? ›

Woodchips & straw work as a great substrate for growing mycelium. Get spawn and break it up, spreading sparingly throughout the wood chips or straw and then water.

What substrate for mushroom farming? ›

Substrate Suitability for Growing Mushrooms

*Agricultural waste includes manure, coffee grounds, grass clippings, leaf waste, straw, corn cobs, hardwood sawdust, banana leaves, cotton seed hulls, newspaper, and cardboard.

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