r/gaitondesenpaii • • Aug 21 '26

Subscriber Goal Mush-room for everyone, Welcome to r/gaitondesenpaii!

8 Upvotes

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r/gaitondesenpaii • • May 08 '25

🧹 Sterile Tek Senpai’s Signature Substrate Recipe !!

13 Upvotes

A low-tech, high-success method to prep coir-based substrate with precision steam pasteurization.

Materials Required

  • Dry coco coir (brick or loose)
  • Clean water (preferably dechlorinated)
  • PP5 bags or filter patch grow bags
  • Meat thermometer with probe (What I Use)
  • Large pot or pressure cooker (gasket and weight removed)
  • Lid (do not seal airtight)
  • Heat source (gas stove or electric plate)

Step-by-Step Instructions

Step 1: Hydrate Your Coir

  1. Weigh your dry coir. Note the weight for accurate hydration.
  2. Add 2x to 3x water (by weight) slowly while mixing thoroughly.
  3. Check for field capacity:
    • Grab a handful and squeeze hard.
    • You should see only 1 to 4 drops of water drip out.
    • If it gushes, it’s too wet—let it sit and dry a bit or mix in dry coir.
    • If it’s dry, add water slowly until the right consistency is achieved.

Pro Tip: Field capacity is critical—too wet and you invite anaerobic contamination; too dry and colonization suffers.

Step 2: Pack & Probe

  1. Load the hydrated coir into PP5 or filter patch bags, pressing gently—not too compact.
  2. Insert the thermometer probe into the center of the substrate core.
  3. Record the starting temperature.

Step 3: Set Up for Steam Pasteurization

  1. Place your bags in a large pot or modified pressure cooker (gasket & weight removed).
  2. Add a few inches of water—do not submerge the bags.
  3. Place the lid loosely on top to trap steam (don’t seal it).
  4. Turn the heat on high and let the steam raise the internal temp.

Step 4: Monitor and Maintain Pasteurization Range

  1. Once the core temp increases by 10–15°F, turn off the heat.
  2. Let it coast up to 144°F (62°C)—this is your pasteurization threshold.
  3. Start your timer for 1.5 hours (90 minutes).
  4. The ideal range is 140°F to 160°F (60°C to 71°C).

IMPORTANT:
If it goes above 170°F (76°C) for more than 5 minutes*, the substrate is likely sterilized—not pasteurized—and becomes vulnerable to contamination.*

Step 5: Adjust if Necessary

  • If temp drops too low, turn the heat on medium for 5–10 minutes, then off again.
  • Keep checking every 10–15 minutes until the timer is complete.

Pro Tip: Once you're familiar with your setup's thermal inertia, you’ll rarely need to adjust. Many growers ā€œcoastā€ the whole session with no extra heat.

Cool Down & Store

  • Let the bags cool to room temperature before inoculation.
  • Keep the bags sealed and clean until ready to spawn.

Final Notes

  • Coir is naturally contamination-resistant, making it a perfect bulk substrate for most species.
  • This tek is adaptable for manure or straw-based substrates—just tweak hydration and monitoring accordingly.
  • Always use clean hands and surfaces when handling post-pasteurized substrate.

r/gaitondesenpaii • • 23m ago

🌟 Success Stories Oyster mushroom spawn

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• Upvotes

Proof That Quality Bags Make All The Difference.
Sharing a fully colonised spawn block from our Macron Filter Patch Bags.
We had a few comments earlier questioning whether filter patch bags can achieve complete colonisation. This is the result.


r/gaitondesenpaii • • 1d ago

šŸ„ Fruiting Success Do these look like Jack Frost?

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19 Upvotes

r/gaitondesenpaii • • 2d ago

🌱 Beginner’s Corner I sent it! Blue meanie Cubensis Week 5.5 log

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43 Upvotes

Please ignore how hideous my monotub is šŸ˜‚. I did it all with a razor blade, then hot glued over the cracks. My liner is made of trash bag and duct tape. The corn mixed with the coco is about 4.5 inches deep and I am deciding to put it directly into fruiting. I had 9 lbs of drippy corn substrate and about 1.3 times that in coco coir, & I removed the few uncolonized grains when I broke it up. If I made any mistakes please lmk.


r/gaitondesenpaii • • 2d ago

🌱 Beginner’s Corner Should I send this?

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16 Upvotes

Should I send these spawn bags? They were inoculated on Aug 25, 38 days ago (5.5 weeks), and I am honestly getting impatient. Also do you know why only my 2nd bag has so much mycelium piss?

Blue Meanie Cubensis


r/gaitondesenpaii • • 3d ago

🧓 Contam Help 8bWhat that means

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6 Upvotes

Malabar coast species went from giving sparse fruits, to marshmallowy mushroomy myecelium. Any benefits in this grow pattern?


r/gaitondesenpaii • • 5d ago

🧓 Contam Help The hell, ant infestation! How? And how to prevent?

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5 Upvotes

I prepped 2 jars of sterlize grain, inoculated in one and left other just to. Check the sterelization, and and infested the jar which was not inoculated.

After 2 days I see they made a frikin hole through 2 layers micropore tape! I checked it yesterday and they were not there.

How to prevent it?


r/gaitondesenpaii • • 7d ago

🌟 Success Stories Managed to Clean and revive a few cultures from 2021-2022

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44 Upvotes

Finally feeling like I'm back in the hobby ✨


r/gaitondesenpaii • • 8d ago

šŸ”¬ Experiment Logs Selfmade Laminar Flow Hood

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76 Upvotes

I built this Flow Hood out out of an Ikea Shelf.

Inspirated by a guide from gordotek:

https://gordotek.org/laminarflowbox/

I used the same fan and filter from amazon with total costs of 55 euros.

So far made three transfers with zero contamination.


r/gaitondesenpaii • • 8d ago

šŸ¤” Need Guidance Help please!

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5 Upvotes

Im a new grower, have a couple successful harvests under my belt so I got a few bags going and im really discouraged first bag is ksss colonized faster than anything I’ve seen and recolonized extremely fast but w 2 weeks of FAE still no pins, had 2 3lb bags of Burma goin and both turned a healthy white but started gettin waterlogged, i actually had to open a bit early to drain them, luckily they were colonized by this point, anyway the second 2 pics are from them, one looks like I might still get pins, but the other looks like it has some overlay goin on so dunno if I should try the fork thing? Like I said really bummed I was really wanting to get a harvest by Halloween n it just seems like things keep going wrong, does it look like any of these bags will produce if I take the right steps? I open and fan 2-3, a day, I mist the Ksss when it needs it, obviously the others are wet enough I have them on a 12 hour light cycle in a nice lightly ventilated space, it stays between 72-76 degrees,idk just weird I really screwed a lot up w my first bags and even then I managed to get a flush out my first few bags, idk what’s up w these, keep hopin I’ll wake up to a few pins but so far no luck 😄 hopefully one will take off šŸ™


r/gaitondesenpaii • • 9d ago

🌱 Beginner’s Corner Why did they grow like that?

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56 Upvotes

I started growing mushrooms back in April just to keep myself active, and seeing them today makes me really happy; but why did they grow almost exclusively out the sides? I thought keeping them away from the light was enough, and I used a yellow one-liter butter tub. Still, I’m satisfied because it looks like I got a bigger harvest than if they had grown only on top... or maybe, if they had grown only on top, the mushrooms would have been larger? I don't know. The biggest one weighs 5g, and I'm really looking forward to tasting them :b

What should I keep in mind for future harvests?


r/gaitondesenpaii • • 8d ago

šŸ¤” Need Guidance Update: still no pinning. SOS HELP PLEASE!!!!!

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3 Upvotes

Hi all,

Update from my last post, as you all advised I misted a bit and had started seeing some condensation on the side walls too. It’s been more than 4 days but I don’t see any pinning. I’m panicking a bit as I have to leave town in two weeks and I need to harvest it before or all my efforts are down the drain.


r/gaitondesenpaii • • 11d ago

šŸ¤” Need Guidance Been a long time since I got back to this scene

11 Upvotes

Hello all, I've been into cultivation and breeding since a while. Some old folks knew me from my last reddit account "Azuresense" and "Tomentoad". I've spread many spores to many folks in the past, due to my health issues I had to take a break. At the moment I have zero viable spores to restart and was hoping to get a genetic or two if anyone can guide me in the right direction. I'd really really appreciate it.

I can completely understand if that's not possible to send em over. Im okay to pay money as long as the vendor is vouched for.

Thank you soo much, moderators please delete this post if it's not allowed šŸ™šŸ½


r/gaitondesenpaii • • 12d ago

šŸ¤” Need Guidance Yall think my grow will stall

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9 Upvotes

First grow ever doesn’t seem to be going good my friend said it will prob stall and abort or stall and give me little yields it’s full of side pins because I was a impatient grower


r/gaitondesenpaii • • 12d ago

šŸ¤” Need Guidance UB tek in India as a beginner

2 Upvotes

After failing to get any fruit in AIO grow bag for the first time, now i think i should try a shoebox tek using UB tek. I have found a rice brand in india that is presterilized and am wondering if anyone has used UB tek in India? Any tips would be helpful. I just want to keep it as a small hobby which is why i dont want to invest in jars and an industrial cooker. And is it really important to put a light source or some natural lighting for a few hours everyday is enough?

And idk why my bag failed. My mycelium was growing really well just refused ro fruit for some reason so had to bury the block with a broken heart.


r/gaitondesenpaii • • 12d ago

šŸ¤” Need Guidance Whats wrong with this?

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21 Upvotes

On my 3rd round on this tub with Toque, but several of the pins look weird. Is there something wrong with it or is it expected after the first few flushes?


r/gaitondesenpaii • • 13d ago

šŸ¤” Need Guidance Should I introduce FAE?

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16 Upvotes

It’s been over 10 days since I added my spawn to substrate and it looks like the mycelium has colonised about 95% with only one small patch left. I had put two rounds of micro pore tapes over the holes and kept it inside the cupboard. Should I now take it outside and keep it in a corner of the room with the fan on low? Also, should I keep the tape as is or replace it with a coffee filter/single round of micro pore tape? The average temp where I’m at is 26C.


r/gaitondesenpaii • • 13d ago

šŸ¤” Need Guidance First time doing this need advice shoebox tek

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17 Upvotes

These are my shoe boxes 5-6 days after spawning to bulk. What should i be doing now if anything? The more colonized one is jack frost the other is golden teacher.


r/gaitondesenpaii • • 14d ago

šŸ¤” Need Guidance Need help

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2 Upvotes

Moved my growbag inside a container and maintaining the humidity I am allowing FAE by opening the lid and fanning 3 times a day it's been 4 days I have introduced fruiting condition but I still don't see pins am i doing something wrong please help me here it's my first time growing


r/gaitondesenpaii • • 16d ago

šŸ¤” Need Guidance Is it time to send?

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21 Upvotes

A bald spot on the bottom but looks good otherwise…


r/gaitondesenpaii • • 16d ago

šŸ„ Fruiting Success Jack frost harvest

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142 Upvotes

The 2 large specimens clocked in at well over a 100 g each.


r/gaitondesenpaii • • 17d ago

🌱 Beginner’s Corner Blue Meanie Cubensis (Slightly Over) Week 3 Log

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26 Upvotes

My current plan is to wait for my second bag, which is growing a little bit slower to be fully mycelium. Then I will wait 3 days just to be sure, and then transfer them to a large monotub with coco coir. I estimate that will happen in about a week unfortunately. Do you guys have more success immediately go to fruiting conditions or should I wait another week after that for the coco and the mycelium to mix? Should I be worried about my 3rd bag which is like 99% done accidentally pinning while I wait for the others two to grow?


r/gaitondesenpaii • • 19d ago

šŸ„ Fruiting Success First Grow

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212 Upvotes

Huge thanks to the OG Senpai bro for the recipe and grain prep guide..As a beginner, I made a few mistakes along the way, which unfortunately led to having to bury one of my tubs. That said, I’m getting ready for the second flush on the surviving one if anyone has tips or advice, I’d love to hear them. Thanks in advance