Inject the SpawnTubs via the inbuilt grey rubber injection ports or take the lids off to inoculate with Agar or blazing fast Grain-to-Grain (G2G) transfers.

If you're interested in G2G, then you should pair these with a sterile SpawnJar.

Packs of 1, 3 and 12.

Features

• Rye Grain or Multigrain (Rye and Millet)
• SpawnTub is placed inside a PP bag and heat-sealed shut within our lab (the entire tub is clean)
• Rubber injection port for safer inoculation by needle injection
• HEPA air filtration built into the lid
• Reusable

Included with our sterile SpawnTubs

• Chlorhexidine alcohol wipe
• Spare sterile needle

You will need

If inoculating with a gourmet spore syringe, you will need 1.5-2ml of solution.

If inoculating with G2G or Agar, you will need to build or buy a SAB or flowhood.

Are these sterile SpawnTubs for me?

If you already have some nice healthy, clean colonised spawn in a jar and you want more of it... It doesn't make sense restarting the full process with a gourmet spore syringe...

There's a muuuch smarter, faster, cheaper and cleaner way to do it.

Buy these SpawnTubs, then shake some of the colonised grains into them and there you go... we're talking full colonisation in just a few days - totally kicks spore syringe butt.

Why create new mycelium from spores when you already have plenty of it? That's what G2G is all about.

But, if you're just starting out with growing, we'd probably recommend sticking with the script and getting comfortable with our grow kits first time around.

How do I use these sterile SpawnTubs?

There's a couple of ways you can use our SpawnTubs...

Gourmet Spore Syringe

The easiest way.

1. You will receive SpawnTubs in sealed bags, which you will need to cut open.
2. Use the alcohol wipe to give the grey rubber injection port a thorough clean (just in case).
3. Inject 1.5-2ml down the side of the tub so that mycelium can be seen easily through the transparent plastic.
4. Take each SpawnTub to a warm area or incubator to begin colonisation.
5. We recommend 26C for ultimate growth speed, but it can be as low as 20C if you're not in too much of a hurry.
6. Look after your SpawnTubs... you will want it to be as clean as possible to avoid microbes getting into the rim of the lid, etc.
7. Once colonisation is complete, inspect it visually for signs of contamination before proceeding to mix with a substrate.

Grain-to-Grain (G2G)

You will need a sterile mushroom spawn glass jar for G2G. The best way (IMO).

The good news is that the mycelium should grow at such a rate that it can totally outrun many microbes, but still - don't take shortcuts for success.

The ratio we tend to use is a 1:10. This means for every spawn jar, we'll distribute the mycelium covered grain between 10 SpawnTubs.

But that's just a general rule of thumb. We range anywhere from 1:3 to 1:15 depending on how much spawn we want or need.

1. You will first need to prepare your glass spawn jar by making sure to break apart all of the colonised grains like in the video we have.
2. Make sure to inspect visually for signs of contamination.
3. Once you have done this, it's now about getting the jar into the SAB or flowhood and ensuring the jar is squeaky clean so you don't wind up shaking microbes into SpawnTubs!
4. Once you are satisfied the spawn jar is as clean as humanly possible, you will want to do a quick smell test, be careful not to let dust fall into it whilst only slightly cracking the lid to smell for anything weird.
5. Now you want to remove the sterile SpawnTubs carefully from their sealed bags.
6. Remember, the entire SpawnTub surface is ultra clean until you remove it from the bag... So the cleanliness and success of the G2G transfer is completely in your hands.
7. Once you have removed the SpawnTubs from their bags, with clean gloved hands, you will want to remove the lids from the SpawnTubs and rest them back down lightly so the grain isn't left exposed.
8. Then when you are ready, remove the glass spawn jar lid and put to the side... With one hand dedicated to lifting the plastic lid from the SpawnTub, pour in some colonised grains and drop the plastic lid back down. Move to each SpawnTub and do the same.
9. Only when you are finished with all of the SpawnTubs should you now go back round to properly click the lids down.
10. Avoid fumbling whilst performing G2G inoculations. It's about speed, cleanliness and efficiency.

Sterility Guaranteed

Every grow kit that we ship out undergoes our strict sterilisation process so that you can be sure you have the best chance of success. And if you do notice an issue before you've used it, or even after, we'll make things right! You are covered for a free replacement, click on the guarantee tab above to find out more :) You are always welcome to ask us for advice too - we are dedicated to your success in this hobby!

Order now and get ready to experience the thrill of growing your own gourmet mushrooms like a boss!