STS

Versatile Brown Oyster Mushroom Spawn Kit

Original price was: R1,399.Current price is: R995.

βœ” Brown Oyster Mushroom Spawn Kit (Pleurotus pulmonarius var. stechangii)
βœ” Includes 100 ml Living Inoculant (LI) in a reusable Culture Bottle
βœ” Includes 1 kg Sterilized Sorghum Grain Spawn with SHIP & 0.2 Β΅m PTFE filter
βœ” Adaptable, fast colonizing oyster with tender edible stems and excellent yields

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Commercial 100cc Living Inoculant in Septum Bottle + Sterilized Sorghum Grain Spawn w/ SHIP

πŸ“œ The Mystery of the Phoenix-Tail

  • The Brown Oyster Mushroom (Pleurotus pulmonarius var. stechangii) is one of the most historically important oyster mushrooms in commercial cultivation. For many years it was widely distributed throughout Asia under the name “Sajor-Caju”, before modern molecular studies demonstrated that it represents a distinctive tropical variety of Pleurotus pulmonarius, now formally recognised as P. pulmonarius var. stechangii. The variety was named in honour of Professor S.-T. Chang, whose work helped introduce this remarkable mushroom to cultivators around the world.

    What makes the Brown Oyster particularly appealing is its combination of vigorous growth, excellent adaptability and outstanding culinary quality. Unlike many oyster mushrooms, the stems remain tender and are often just as enjoyable to eat as the caps, resulting in very little kitchen waste.

    Each Spawn Kit contains everything required to establish your first grain spawn. Once fully colonized, the grain spawn can be expanded into your preferred fruiting substrate for productive harvests.


    🌱 Cultivation

    Brown Oyster is one of the most adaptable oyster mushrooms available and performs well across a broad range of growing conditions.

    Recommended substrates include:

    • Pasteurized wheat or barley straw
    • Master’s Mix (Hardwood Sawdust & Soy Hulls)
    • Supplemented hardwood sawdust
    • Agricultural residues
    • Paper and cardboard fibre

    The strain colonizes aggressively and produces attractive clusters of tan to chestnut-brown mushrooms with firm, meaty flesh.

    For best results, provide good Fresh Air Exchange (FAE), adequate humidity and indirect lighting during fruiting. Its broad environmental tolerance makes it suitable for cultivation throughout much of South Africa.


    πŸ‡ΏπŸ‡¦ Why South African Growers Love It

    • Exceptional adaptability across a wide range of temperatures
    • Fast, vigorous colonization
    • Excellent yields on straw and agricultural waste
    • Tender edible stems with minimal kitchen waste
    • Rich, earthy flavour and firm texture
    • Reliable performer for both beginners and commercial growers
    • One of the most versatile oyster mushrooms in cultivation

    πŸ“¦ What’s Included

    Each Brown Oyster Spawn Kit contains:

    • 1 Γ— 100 ml Living Inoculant (LI) containing Hericium erinaceus
      • Amber laboratory Culture Bottle with reusable 3 mm silicone septum
    • 1 Γ— 1 kg Sterilized Sorghum Grain Spawn
      • Integrated Self-Healing Injection Port (SHIP)
      • 0.2 Β΅m PTFE filter patch
    • 1 Γ— Sterile 5 ml syringe
    • 1 Γ— Sterile 16G needle

  • Detailed instructions are provided in the “How to Use LI” tab.

How to Use LI

πŸ§ͺ How to Use Your Living Inoculant (LI)

Your Spawn Kit has been designed to make mushroom cultivation as simple and contamination-resistant as possible. The included Living Inoculant (LI) contains an actively growing mushroom mono-culture, while the Sterilized Sorghum Grain Spawn provides the ideal medium for expanding that culture into vigorous grain spawn.


🧼 Step 1 – Sanitize

Before inoculation, wipe both the Culture Bottle septum and the SHIP (Self-Healing Injection Port) on the Spawn Bag with 70% rubbing alcohol.

Allow both surfaces to air dry before proceeding.


πŸ’‰ Step 2 – Withdraw the Living Inoculant

Using the supplied sterile syringe and needle:

  • Insert the needle through the bottle septum.
  • Withdraw approximately 5 ml (5 cc) of Living Inoculant.
  • Remove any excess air from the syringe.

The Culture Bottle is reusable and can be accessed multiple times using sterile technique, via a 3mm thick silicone septum.


πŸ“¦ Step 3 – Inoculate the Spawn Bag

Insert the needle through the SHIP on the Spawn Bag and slowly inject the 5 ml of Living Inoculant into the sterilized sorghum grain.

Remove the needle and gently massage the inoculation site if necessary.

The SHIP will reseal automatically after the needle is removed.


πŸŒ™ Step 4 – Incubate

Place the Spawn Bag in a clean, dark location at approximately 23–27Β°C.

Do not expose the bag to direct sunlight.

During incubation, the white mycelium will gradually spread throughout the grain.


πŸ”„ Step 5 – Mix the Grain

Once approximately 30–40% of the grain has colonized with healthy white mycelium, gently break apart the colonized grain and mix it evenly throughout the bag.

This redistributes the growing mycelium and significantly accelerates complete colonization.


πŸ„ Step 6 – Use as Grain Spawn

Once the grain is fully colonized (completely white), it is ready to inoculate your preferred mushroom substrate.

Suitable substrates include pasteurized straw, hardwood sawdust, Master’s Mix, and other compatible materials depending on the mushroom species.

For best results, use the colonized grain spawn within 3 months.


πŸ’‘ Tips for Success

  • Work as cleanly as possible during inoculation.
  • Always sanitize the bottle septum and SHIP before each use.
  • Do not remove or damage the filter patch.
  • Healthy mycelium should appear bright white and vigorous.
  • If contamination develops, dispose of the bag without opening it indoors.

♻️ Expanding Your Culture

One of the advantages of the Living Inoculant system is that the Culture Bottle contains enough inoculant to prepare multiple Spawn Bags.

When you’re ready to expand your production, simply order additional Sterilized Sorghum Grain Spawn and repeat the inoculation process using the remaining Living Inoculant.

How to use Living Inoculant (LI)

Weight 0.15 kg
Dimensions 20 × 8 × 13 cm
Culture Type

Master Slant, Mother Spawn, Castellani

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Brown Oyster Mushroom productVersatile Brown Oyster Mushroom Spawn Kit
Original price was: R1,399.Current price is: R995.
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