Shiitake Mushroom Grain Spawn (3790) | Little Acre
Shiitake Mushroom Spawn (3790)
Shiitake Mushroom Spawn (3790)
Shiitake Mushroom Spawn (3790)
Shiitake Mushroom Spawn (3790)
Shiitake Mushroom Spawn (3790)
Load image into Gallery viewer, Shiitake Mushroom Spawn (3790)
Load image into Gallery viewer, Shiitake Mushroom Spawn (3790)
Load image into Gallery viewer, Shiitake Mushroom Spawn (3790)
Load image into Gallery viewer, Shiitake Mushroom Spawn (3790)
Load image into Gallery viewer, Shiitake Mushroom Spawn (3790)

Shiitake Mushroom Spawn (3790)

Regular price $45.00 Sale price $45.00

Unit price per 



Package contains:

  • 1 - 2kg of Shiitake mushroom grain spawn ready and waiting to inoculate bulk substrate.
  • Grain is Australian-grown wheat sterilised at 121°C in an industrial autoclave.
  • Prepared in our purpose-built, high quality cleanrooms and laboratory facility.  

Hint: We use around 250g of grain spawn per 10L bucket of substrate.

Note: Mushroom spawn does not come with instructions.


Chill in the fridge until ready to use. Use within three months for best results.

Scroll down for more growing details.


We promise to get your fungi flourishing! We hand-on-heart believe everyone can grow their own mushrooms and we’re here to help with expert advice and know-how.

So don’t be shy, please get in touch with all your curly questions and we’ll get you growing mushrooms in no time!



  • Certified Australian Made
  • Cultured here at our Brisbane facility
  • Support our small (but mighty) independent business!


  • Shipped using biodegradable tape in a recyclable cardboard box


Are you a mushroom grower looking for a regular supply of commercial quantities of high quality grain spawn?

We have bulk rates for commercial customers. Visit our Wholesale page for more information and to apply for an account.


Mycelium is extremely sensitive to temperature changes and transport conditions.

And mushroom grain spawn is alive with mushroom mycelium. That’s why we strongly recommend shipping grain spawn via Express Post.  


We ship orders Monday to Thursday. We do not dispatch grain spawn on Fridays to avoid it being in transit over weekends due to its heat sensitve nature. Any orders placed on Thursday after 12pm or Friday will be dispatched the following Monday.

Please note this applies to all orders, including Express Post shipments.

Click & Collect orders

Pick up your order from the Little Acre warehouse in Geebung, on Brisbane’s northside. Pick up is free - simply select ‘Pick up’ at checkout.

Pick up is available Monday to Friday, between 8:00am - 3:30pm.  

Tracking information

Once your order has been shipped, you’ll receive an email with your tracking link so you can stay up to date with where your order is at.

Delivery times

Delivery times are tricky to provide these days. You’ll be able to check your unique delivery estimate provided by Australia Post via the tracking link in your email with the subject “Your order has been shipped!”. 

Shipping costs

Orders under $45
Standard Shipping via Australia Post - $10.20
Express Shipping via Australia Post - $14.20

Orders $45 and over 
Standard Shipping via Australia Post - flat rate $14.20*
Express Shipping via Australia Post - flat rate $18.20*

(*This does not apply to bulk growing supplies.)

Shipping destinations

We ship Australia-wide. We currently do not offer international shipping, sorry team!

Growing details


Species name: Lentinula edodes var. 3790

Shiitake are a signature gourmet mushroom with a strong umami flavour. This Shiitake strain 3790 is the most widely grown Shiitake strain in Europe and is our preferred Shiitake strain here at Little Acre due to it's plump and perfect caps. It will produce less pins than 3782 but the mushrooms are more dense and heavier, producing more mushroom weight. Pick just after the veil separates from the stem for heaviest, best formed shiitake.

Shiitake Mushrooms grow best on hardwood sawdust. We recommend using eco-logs or hardwood fuel pellets if you can not find sawdust. Alternatively, you can use the grain spawn to fill and plug holes in hardwood logs.


Shiitake are fussy about their substrates and only grow on hardwood sawdust or hardwood logs.

For highest yields and premium shiitake, grow at low temperature on hardwood sawdust supplemented with a low percentage of wheat bran. Over-supplementation will cause misshapen mushrooms and can negatively effect yields.

Shiitake can not be grown on Masters' Mix as soy hulls are too nutrient rich.


Incubation period: 8 - 12 weeks (sawdust blocks). The mycelium needs to form a brown crust all over the block before it's ready to fruit. Incubating blocks should be exposed to 12 hour light cycles, 12 hours on, 12 hours off.

12 - 18 months (log cultivation). Check out our DIY Mushroom Log Kit if you've never grow shiitake on logs before, it's got everything you need to get started.  

Incubation temperature: Room temperature between 21 - 24°C. Do not let the substrate temperature exceed 30 °C.


Pinning temperature: 10 - 15°C 

Pinning humidity: 90 - 100% relative humidity

Cold shock, soaking and vibration can help initiate pinning.


Fruiting temperature:

Range: 10 - 21°C
15 - 17°C

Fruiting humidity: 75 - 95% relative humidity. Shiitake like to be cycled through a changing humidity state.

CO2 concentration: 500 - 1000 ppm

Important note: these growing guidelines are drawn from our years of experience as commercial mushroom growers. They are a guide only. We encourage experimentation to discover what works best for your individual conditions.

Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Main menu

Your cart is currently empty.
Shop now