Freckled Chestnuts (Pholiota adiposa) "PA-321" Agar Culture on MYA

$30.00

Jacksonville Grown | Small Batch | Support Available | Florida-Focused Learning

Transfers made to order — on MYA plate

You Receive 1 Fresh 100mm MYA dish of Pholiota Adiposa “Freckled Chestnut” mycelium ready for your further expansion.

One of my favorite mushrooms to grow and eat, Pholiota adiposa, the Freckled Chestnut Mushroom.

These take a little longer than most, but the wait is worth it. The substrate needs roughly 6 weeks of incubation before fruiting is initiated, you're looking for rich golden-amber metabolites developing throughout the block. That's your visual cue. Once you give it the cold drop it needs, the fruits pop: tight clusters of rounded caps covered in fibrous scales that look like spikey little turtle shells. Firm, crunchy texture after the pan fry with a rich, nutty, meaty depth that stands up to high heat.

In the wild, P. adiposa grows on hardwood logs and stumps across temperate forests: beech and oak are common hosts. That natural substrate preference carries into cultivation: supplemented sterilized hardwood blocks are the path. This species does need colder temperatures than some to initiate fruiting.

Cultivation Overview

Chestnut Mushrooms require sterilized, supplemented hardwood substrate — pasteurized is not sufficient for reliable, contamination-free colonization. Colonization runs at 70–75°F for a minimum of 6 weeks. The visual cue to initiate fruiting is golden-amber metabolite development throughout the block. Do not rush this stage. Once the block is fully primed, drop to cool fruiting conditions (under 65°F) and the cluster formation follows.

Fruiting Conditions

Temperature:  55–65°F fruiting (under 65°F)|60–75°F colonization

Humidity:  65–95% RH during fruiting

Light:  Indirect or diffused light

Fresh Air Exchange:  Moderate — consistent airflow without drying the block surface. Can handle higher CO2 better than Oysters.

Incubation:  Minimum 6 weeks: wait for golden metabolite development before initiating fruiting

Best Season:  Fall and winter runs: or a dedicated cold fruiting chamber

Characteristics

Scaled, freckled cap surface — tight clusters with a distinctive turtle-shell look

Firm, crunchy texture after cooking — holds up at high heat

Rich, nutty, savory flavor with depth

Two-stage cultivation: warm incubation → cold fruiting

Golden metabolite development is the readiness indicator

Sterilized hardwood substrate only

Specialty cool-weather cultivar — fall and winter production

Ideal For

Cultivators with a dedicated cold fruiting chamber or cool fall/winter space

Intermediate growers ready to work with a more demanding species

Gourmet production — visually and culinarily distinct from standard varieties

Chefs and market growers looking to differentiate

Agar work and culture expansion

Anyone who wants to grow something genuinely different

Chestnut Mushrooms are making their way into serious kitchen conversations for a reason. The look, the texture, and the flavor are all their own. Patience is the skill set this species teaches — and it rewards that patience well. Research wise; I’m sure they’re holding onto some really cool compounds we can use for something!

Grow unique genetics.Grow clean cultures.

Let's Myceliate Tomorrow. 🍄

Jacksonville Grown | Small Batch | Support Available | Florida-Focused Learning

Transfers made to order — on MYA plate

You Receive 1 Fresh 100mm MYA dish of Pholiota Adiposa “Freckled Chestnut” mycelium ready for your further expansion.

One of my favorite mushrooms to grow and eat, Pholiota adiposa, the Freckled Chestnut Mushroom.

These take a little longer than most, but the wait is worth it. The substrate needs roughly 6 weeks of incubation before fruiting is initiated, you're looking for rich golden-amber metabolites developing throughout the block. That's your visual cue. Once you give it the cold drop it needs, the fruits pop: tight clusters of rounded caps covered in fibrous scales that look like spikey little turtle shells. Firm, crunchy texture after the pan fry with a rich, nutty, meaty depth that stands up to high heat.

In the wild, P. adiposa grows on hardwood logs and stumps across temperate forests: beech and oak are common hosts. That natural substrate preference carries into cultivation: supplemented sterilized hardwood blocks are the path. This species does need colder temperatures than some to initiate fruiting.

Cultivation Overview

Chestnut Mushrooms require sterilized, supplemented hardwood substrate — pasteurized is not sufficient for reliable, contamination-free colonization. Colonization runs at 70–75°F for a minimum of 6 weeks. The visual cue to initiate fruiting is golden-amber metabolite development throughout the block. Do not rush this stage. Once the block is fully primed, drop to cool fruiting conditions (under 65°F) and the cluster formation follows.

Fruiting Conditions

Temperature:  55–65°F fruiting (under 65°F)|60–75°F colonization

Humidity:  65–95% RH during fruiting

Light:  Indirect or diffused light

Fresh Air Exchange:  Moderate — consistent airflow without drying the block surface. Can handle higher CO2 better than Oysters.

Incubation:  Minimum 6 weeks: wait for golden metabolite development before initiating fruiting

Best Season:  Fall and winter runs: or a dedicated cold fruiting chamber

Characteristics

Scaled, freckled cap surface — tight clusters with a distinctive turtle-shell look

Firm, crunchy texture after cooking — holds up at high heat

Rich, nutty, savory flavor with depth

Two-stage cultivation: warm incubation → cold fruiting

Golden metabolite development is the readiness indicator

Sterilized hardwood substrate only

Specialty cool-weather cultivar — fall and winter production

Ideal For

Cultivators with a dedicated cold fruiting chamber or cool fall/winter space

Intermediate growers ready to work with a more demanding species

Gourmet production — visually and culinarily distinct from standard varieties

Chefs and market growers looking to differentiate

Agar work and culture expansion

Anyone who wants to grow something genuinely different

Chestnut Mushrooms are making their way into serious kitchen conversations for a reason. The look, the texture, and the flavor are all their own. Patience is the skill set this species teaches — and it rewards that patience well. Research wise; I’m sure they’re holding onto some really cool compounds we can use for something!

Grow unique genetics.Grow clean cultures.

Let's Myceliate Tomorrow. 🍄