Pre-Poured Agar Plates
Pre-Poured Agar Plates High nutrition
Poured, set and ready for clean culture work: isolating, cleaning up and expanding.
From$25
AMK Store Est. 2026
Sub & grain fit for a kingdom.
Sterilised grain and premium CVA substrate for gourmet and medicinal mushroom growers. All-in-one grow bags, pre-poured agar, cultures and grow kits are on the way.
- Sterilised
- Injection-port grain bags
- Filter-patch sub bags
The staples
EVERY GROW STARTS WITH THESES STEPS
STEP 01• CHOOSE WHAT CULTURE YOU WANT TO GROW
The range
Everything for the grow.
Build your grow
How much grain do you actually need?
Tell us how much substrate you are filling and the spawn ratio you like. We will work out the grain, pick the cheapest mix of bag sizes, and bag the lot in one click.
Substrate
Grow docketAMK Store
2.5kg grain
+
5kg substrate
Total$0
Bag mix is the cheapest combination of our bag sizes that covers what you need.
Grain guide
Pick your grain.
Four grains, one standard. Here is how they compare, in grower terms.
How it fits together
Plate to harvest in four moves.
-
01
Inoculate
Introduce your culture to a bag of sterilised grain through the injection port.
Sterilised grain -
02
Colonise
Let the mycelium run through every kernel until the bag turns white.
Agar for clean starts -
03
Spawn to sub
Break up the colonised grain and mix it through your substrate.
Premium CVA substrate -
04
Fruit
Give it fresh air, humidity and light, then harvest your flush.
All-in-ones do 01 to 03 in one bag
The culture library Coming soon
Gourmet & medicinal, on the bench.
The library is being catalogued now. Join the drop list and you will hear the moment it opens.
The kingdom standard
Made properly, bagged properly.
Sterilised
Grain and substrate both arrive sterilised and sealed, ready to use.
A refined recipe
Our CVA recipe has been refined over years of growing for consistent results.
Nutrient-enhanced grain
Prepared with proven methods and carefully selected nutrients for a strong start.
Proper bags
Grain bags carry an injection port. Substrate bags breathe through a filter patch.
Questions
Good to know.
Something not covered here? Ask us and we will add it.
What is the difference between grain and substrate?
Grain is what you inoculate first. Once the mycelium has colonised it, that grain becomes spawn, and you mix it through the substrate: the bulk material your mushrooms fruit from.
Which grain should I choose?
Wheat is the all-rounder. Oats and milo break apart easily, and milo gives you the most inoculation points per kilo. Corn has the biggest kernels. The grain guide compares all four.
How much grain do I need for my substrate?
It depends on your spawn ratio. At 1:2 you use one part grain to two parts substrate, so 5kg of substrate takes 2.5kg of grain. The grow builder does the maths and picks the bag sizes.
What is an all-in-one grow bag?
Sterilised grain and substrate layered in one bag with an injection port. You inoculate the grain, let it colonise, then mix it through the substrate without opening the bag. They are coming soon.
How should I store my bags?
Keep them sealed, somewhere cool, clean and out of direct sunlight, and use them soon after they arrive.
When do cultures, agar and grow kits land?
They are being prepared now. Join the drop list and you will hear first.
Pre-Poured Agar Plates
Pre-poured plates for clean culture work. Coming soon.
Pre-Poured Agar Plates
Pre-Poured Agar Plates Low Nutrition
Poured, set and ready for clean culture work: isolating, cleaning up and expanding.
From$20
Poured, set and ready for clean culture work
Agar is where clean cultures come from. A pre-poured plate lets you isolate a culture, clean one up, test a liquid culture before it goes near a grain bag, and keep a library of the strains that perform for you. Ours are poured and set in a clean environment, sealed, and shipped in sleeves, so you skip the pressure cooking and the pouring and go straight to the fun part: the transfer.
On this page: Pre-Poured Agar Plates High nutrition from $25 (5 plates, 10 plates, 20 plates, 30 plates, 50 plates) and Pre-Poured Agar Plates Low Nutrition from $20 (5 plates, 10 plates, 20 plates, 30 plates, 50 plates). Orders ship Australia-wide, tracked, from $15. See delivery.
High nutrition or low nutrition?
| Plate | Use it for | Notes |
|---|---|---|
| High nutrition | Expanding a known-clean culture, growing out tissue, building stock to send to grain | Fast, dense growth. Colour options make it easy to see mycelium and spot contaminants. |
| Low nutrition | Isolating from a mixed plate, germinating, testing a liquid culture, exotic species | Slower, sparser growth that separates competing organisms so you can pick a clean sector. |
Basic agar technique
- Set up clean
Work in a still air box or in front of a flow hood. Wipe everything, including your hands, with 70% alcohol.
- Transfer
Flame your scalpel, let it cool, cut a small wedge of clean mycelium from the edge of a colony and place it face down on the new plate. Wrap with cling film or tape.
- Watch and select
Keep plates at room temperature out of light. Transfer the fastest, cleanest, most rhizomorphic growth forward; bin anything coloured, slimy or fuzzy. The agar guide shows what to look for.
Questions
Good to know
What are pre-poured agar plates used for?
Isolating a clean mushroom culture, cleaning up a contaminated one, growing out tissue from a mushroom, expanding a culture before sending it to grain, and checking that a liquid culture is clean. They are the foundation of reliable, repeatable grows.
What is the difference between high and low nutrition agar?
High-nutrition agar feeds fast, dense growth, which is what you want when expanding a clean culture. Low-nutrition agar slows everything down, so competing organisms separate out and you can cut a clean sector away from them; it is the plate for isolation, germination and testing.
How many plates do I need?
Five is enough to isolate and expand one culture. Ten to twenty gives you room to run a couple of species and a few clean-up transfers. Serious hobbyists go through fifty a season.
How should I store agar plates?
Sealed, upside down (lid at the bottom), in the fridge. Let them come to room temperature before you open them so condensation does not drip onto the agar.
Do I need a flow hood to use agar?
No. A still air box (a clear tub with two arm holes) is enough for careful transfers, and it is how most hobby growers start. A flow hood makes the work faster and more forgiving. See still air box vs flow hood.
Read before you buy
All guidesLab & agar 3 min read
Agar plates for beginners: isolating a clean mushroom culture
Agar is where luck stops being part of the method. One plate shows you what a culture really is before you spend three weeks finding out in a grain bag.
Checkout
A few details, then you pay on a secure page.
The drop list
Join the kingdom.
Restocks, new cultures and first dibs on grow kits. One email when something lands, nothing more.