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PF Original — Spore Vial 10ml

PF Original is the historic cubensis spore vial that powered the PF Tek revolution — bred by Robert McPherson for BRF cakes, very easy to grow, and a sentimental classic.

Availability: In stock

€17.50
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The strain that wrote the book on home cultivation

PF Original — also known as PF Classic — was isolated by Robert McPherson, who cultivated under the name “Psilocybe Fanaticus.” In the early 1990s McPherson developed the PF Tek: a method for growing cubensis on brown rice flour (BRF) cakes in small jars — a technique so accessible that it became the entry point for virtually every home cultivator of the era. This strain was bred specifically to thrive in that method. It spread through early internet communities on Lycaeum and Shroomery and remains one of the most historically significant cubensis isolates in existence.

Medium-sized, classic-looking fruits

PF Original produces medium-sized fruit bodies with caramel-brown caps and a distinctive golden centre — classic cubensis morphology, clean and well-proportioned. Caps are convex when young and flatten at maturity. Stems are white, moderately thick, and bruise a moderate blue when handled. Spore prints are deep purple-brown. There is nothing flashy about PF Original’s appearance, which is rather appropriate: this is a strain that delivers substance over spectacle.

Reliable, familiar — a sentimental classic

PF Original holds a special place for long-time cultivators who learned the craft on BRF cakes. Community accounts describe it as producing a balanced, well-rounded experience — not cited as among the most intense cubensis varieties, but reliable and consistent in character. These are anecdotal reports; as always, growing conditions drive the result. For many growers, PF Original carries the additional dimension of nostalgia and historical connection to the origins of the hobby.

Designed for BRF cakes, adaptable to bulk

PF Original was bred for brown rice flour cake cultivation and it excels in that format. It performs well on small jar setups, making it an ideal choice for growers who want to try the original PF Tek method as it was intended. Colonisation is medium-paced, rated very easy overall — designed from the outset to be accessible. It adapts to bulk substrates too, though its historical home is the BRF cake. Two to three productive flushes is the norm.

PF Original at a glance

StrainPF Classic
OriginUSA — isolated by Robert “Psilocybe Fanaticus” McPherson, the original PF Tek strain (1990s)
DifficultyVery easy — bred specifically for the BRF cake method
Colonisation speedMedium
Yield ratingMedium
Cap colourCaramel-brown with golden centre
BruisingModerate blue
Notable traitThe strain that defined the PF Tek — designed for brown rice flour cakes, foundational to home cultivation

About Psilocybe cubensis vials

Every spore vial in our catalogue contains a single, isolated Psilocybe cubensis strain in a sterile preservation fluid. Cubensis is the most widely cultivated species in the genus, with shared growing parameters across most strains — the differences between strains are mostly visual, behavioural and in subtle yields. The technical specs below apply to every cubensis vial we ship; the strain-specific traits are listed in the table on each product page.

Species Psilocybe cubensis
Vial volume 10 ml
Fruiting temperature 21–24 °C (70–75 °F)
Optimal humidity 90–95%
Compatible substrates BRF cakes, grain, manure-based, coir-based
Time to first harvest ~30–45 days (varies per strain)
Typical flushes 3–5
Spore print colour Dark purple-brown
Shelf life Up to 2 years refrigerated (2–8 °C)

Contents

  • 1× glass vial with 10 ml sterile spore solution
  • 1× sterile 10 ml syringe
  • 2× alcohol prep pads (“alco preps”)
  • Carton box, sealed for shipping

Why choose a spore vial?

  • Long shelf life. Up to 2 years refrigerated — significantly longer than a typical spore syringe.
  • No static charge. Glass vials don’t carry static, so spores stay in suspension and don’t cling to the inside walls. You actually get to use 100% of the spores.
  • Higher spore density. Roughly 1,000 spore grow-parts per millilitre — about double a standard syringe.
  • Resealable septum. The rubber membrane re-seals after each needle pass, so one vial inoculates multiple substrates over time.
  • Compatible with liquid culture media. Vial spore solution is clean for use with LC growth media, where syringes often aren’t.

Practical use

A 10 ml spore vial holds enough solution to inoculate roughly 3 litres of substrate (around 3 ml per litre). Always sterilise the rubber septum with an alcohol prep before inserting a needle, and replace the protective stopper cap between uses. The vial can be drawn from multiple times as long as the septum is sterilised before each pass.

Best practice: transfer to agar or liquid culture first. For the most reliable results, don’t inject spore solution directly into grain. Spores need to germinate before they can colonise, and grain offers no way to spot contamination early. Transferring to an agar plate or to a liquid culture (LC) medium first lets you isolate clean, vigorous mycelium before it ever touches your final substrate. This step typically increases success rates significantly and lets you produce multiple grain bags from a single vial via LC.

Want a full step-by-step walkthrough on inoculating, storing and reusing your spore vial?

View spore vial instructions

Storage

Store the vial in the refrigerator between 2 °C and 8 °C (35–46 °F), dark and upright. Keep the protective septa stopper cap in place when not in use. Do not freeze — ice crystal formation can rupture spores. Stored correctly, a spore vial remains usable for up to 2 years from dispatch. If the solution shows green, pink or orange tints, contamination has set in and the vial should be discarded; faint brownish cloudiness is normal and represents the spores themselves.

A note on legality

Psilocybe spores themselves contain no psilocybin and are legal to possess in most EU countries. Local laws on cultivation and possession of mature mushrooms vary — please check the regulations in your country before going further.

Additional Info
Additional Info
Productcode MCS.SPVIA.002-PFOR-10
Weight (KG) 0.1000
Form Vial
Contents (ml) 10ml
Mushroom Strain PF Original
Species Psilocybe cubensis
Potency Average / High
Difficulty Easy
Origin Unknown
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