GRAIN SPAWN 101, Start to Finish Tutorial on How to Make Mushroom Grain Spawn from Liquid Culture 

Awesome video one of the best I’ve watched, appreciate your experience.

I appreciate the delicate care with which he handled that rocker.. I was worried.. but when it came time, he handled it like a pro.

Your technique is absolutely perfect. Beautiful demonstration, thank you.

Brotha mush love for the channel. Your content is great. Helping so much on my journey. These creatures are for real. Never felt more amazing

Your videos are very informative and easy to understand thanks for sharing 👍

I had no idea. First time seeing anything like this. Can’t wait to see all the videos. This looks amazing. Thank you for introducing me to my new obsession.

Great guide, thank you 👍 some day soon I'll gather the kit I need to start growing 🙂

Super educational Thanks for making this video!

This is great information and not too complicated on the ingredients. After watching, I'm very enthusiastic and confident to give this a try. You are a motivating teacher. I need to watch the next stage and will look through your videos to find it. Thank you so much for sharing.

I’m brand new to mushroom growing. Inoculated my first grow bags July 31. Thank you for the information. I’m trying to learn as much as I can.

Clearly a pro. Excellent technique here, kids. Thanks for sharing with the world.

You have awesome content. Thanks so much for putting this all together. I'm slowly gathering all of my supplies, and your videos really help build confidence going into this hobby. Thanks again.

thanks a lot for the knowledge. you shared here. im starting to replicate my own spore prints from 2 years ago. so far i have been having 50/50 (only made 2 grain spawns) i hope to get better and better. will check all your channel searching for more info. have a good trip

I would like to complain about your videos being off the charts!! Your awesome sir! And it took me less than 10 min to leave this. lol!

Nice video, very clear thanks.

I love your content!! Thank you 🙏🏽

Thanks you very much for your sharing greetings to you from Algeria 🇩🇿.

Thanks for that great video!

I've got to get some of those grains. I never thought about Chicken Chow. TY

This is hardest part thanks again

Man I love your videos. When I flip the tv on the first thing I check is to see if you have a new video lol. Anyway, would you ever consider doing a video on grain spawn to substrate? Using maybe a 6-20qt tub? I am a beginner. The PF Tek seems to be a little weak sauce in my opinion as far as growing potential. Learning how to grow in a tub would be ideal. Anyway, thanks again for the great content brother. You are a good dude

Good info bro. Thanks.

Thank you for sharing. Got my first attempt too wet. Slows down growth and very susceptible to rot. I'll do your process next attempt.

Nice video.Thank you.

Good video. Thanks

Cheers just started my channel out. getting some good info mush lovin

I'm digging how thorough you are. I'm just starting out and currently at my parents so I don't have room to set up a flow hood. I'll definitely check out more of you vids

I love your channel

Great video, learning a lot from u, starting to inoculate my second rye grain, first 1 was a fail. I feel more confident now thanks for sharing 👍

Yet again another flawless video. Thanks brother. If I wanted to make only one quart jar of grain spawn, how much water would I add to the mixture grain? I know you said they expand about 40%

Thanks for another! Although I've always inoculated down the sides using the same circular motion that you use, I often wonder why not just straight down the center. Then when it's obviously colonized to the outside you're certain it's fully colonized as opposed to guessing or waiting several additional days to further be certain that it's colonized to the inside where you can't really see. Never seen that explained elsewhere, but that's the way everyone seems to do it.

Outstanding

You had me at ice fishing and michigan, go blue!!

Just inoculated my first 2 bags im in Massachusetts i see the hat lol. Hoping it goes well thabks for the vid.

Thank you so much

Thanks man. Just thanks. Awesome.

On one of your vids I observed you wrapping your plates but not with parafilm. I'm very interested in how you got the plastic wrap into the 1" size. I'd love to see a vid on the process you take making the small rolls for wrapping plates and jars. Keep on teaching I'm loving the learning process!

Thank you very muck.

Thank you for making this video! I appreciate the time you took to explain everything the way you did. Did you simmer or boil the water separately?

Awesome video, you are one of my favorite RU-vidrs to watch for sure! Now to the question. When you add this grain spawn to your pasteurized fuel pellets, what ratio do you use?

Love your videos. tape 3 quarters to the rocker to make it a little less annoying and still maintains correct psi

Nice video.

Thanks for the video, can you use mixed corn for chickens ? It’s wheat and cut maize . Thanks

thank you for this, you just showed why my grain inocculation did not go well at all. got yeast contam . grain was too wet and some split ....

Those Microppose hydrophobic adhesive filtration disks are awesome! Ive been using them for about 2yrs now on my PP5 grain jar lids. Being hydrophobic you dont have to ever worry about the filter disks being a vector for contamination. I ordered several sets, because I thought I would be replacing them, but theyve been through dozens of PC runs and are still perfect! I havent had to replace a single one, and not a single one has come off my lids either. I HIGHLY recommend them, I recommend them so much that I promote them in my videos for free. I was unaware that the purge sequence on the PC run is unnecessary, I will definitely try skipping it and see if my tam rate increases. Btw, the foil is completely unnecessary as well. I quit using foil to cover my lids last year, and my tam rate did not increase in the least. Same with gypsum in my sub/grains/LC, quit using it and absolutely nothing changed, I cant for the life of me what its purpose is in this hobby. My tam rate is still virtually zero, and there has been no loss in weight on harvest. I dont see the benefit, so its no longer an additive in my materials. I believe the point you made about light is s fallacy, an old wives tale. I run 2 6500k LEDs in my grow space that the jars are exposed to 12hrs a day, and I never have issues with colonization. I break n shake at 30% (approx 10 days), and achieve full colonization in approx 2.5 weeks. Not saying that it helps, but it definitely doesnt hurt, in my experience. Unrelated to your video, I also learned from a lab tech that agar can be poured at much lower then previously recommended temp. If you are decent at pours, you can actually pour at 100f as opposed to the recommended 130f. Ive adopted this method and have been using it for about 2yrs. I normally pour around 130 plates per run, and the agar doesnt set up on me until after I finish the pour. Pouring at the lower temp reduces both bubbles and condensation on the plate lids.

Same, I never vent for any sterilization and works fine.

Perfect ❤

Hi, great tutorial, thank you. What temperature do you keep your jars at while running the mycelium.

Thank you again for all you are sharing. I'm going to ask about Rye. Same hydration as wheat? Handle it the same as wheat?

THANKS ALOT . tony

Thanks for the great video! I am very motivated and love your method. What was the growth time to full colonization? You gently shook the jars after 7 days, but did not mention the period until colonization was complete. I appreciate this varies, bt a rough guide will suffice. TIA

I've never heard anyone say LC is prone to contam. MSS are way more prone to contam if not put to agar first. This video is great. Very easy tutorial to make some grain jars. Mush love!

Awesome video once again. I don't have a Blue seal store here any more. I tried looking up Blue Seal wheat grain, I didn't get a hit with any just saying Wheat grain??? Is there a specific name on that bag you where showing? Thanks again

Great video, so much information. Unless I missed it, what temperature range is good for growing out the mycelium in grain spawn? I have a cold house, but I can use a heated seedling mat under a tub if necessary. Thank you.

Nice video! What if I don't have a flow hood? Will this be an issue? Are there alternatives or safe practice I can use without one? Thank you

I'm a newbie to growing mushrooms. I'm almost ready to do my first batch. I'm loving your videos. I'm learning a lot. I have a question. What's the reason for moving the cultured spawn from the jars to the hardwood pellets? After a few weeks, can't you just harvest the mushrooms right from the jars? BTW, I'm in western NY as well.

I prepared my first batch of LC from spores and ready for the next step - testing for contamination on agar and then on to inoculating grain. Can you please advise on the types of syringes and needles you recommend including needle gauge size? Disposable or reusable? Luer locks? Thanks so much!

Alright my first attempt went bad, attempting number two after watching your vid 😂🤞🏻

Do you use the silicon gaskets with the pp5 lids for your grain spawn? I remember you do it for LC but was unsure for grain spawn. Trying to find out if they’re necessary for quart grain jar spawn pp5 lids

Hi, I love your videos but I cannot find any information on the internet how to introduce the grain spawn to the growing bags and how much grain spawn you need per kg to start the mushroom growing. It would be nice if you can let me know or show a video how to do this. Thanks very much and keep up the good work.

Awesome video. I didn't catch you say how much LC you are putting inside of the jar or that doesn't matter?

Great video while I’m researching proper technique. I’m all for the soaking and pressure cooking, but curious why you don’t boil. Is that dependent on grain type or you do you just skip boiling altogether?

Love the videos and advice. However went looking for the Blue Star Wheat Chicken feed. The only one they have in the Blue/Red bag was made of Cracked Corn, Oats, Wheat and called Scartch Chicken Feed. What do I look for. Also could find a wheat only their web site. What I look for or what's it called ? Thanks in advance for your help.

Thanks for all your informative videos! I sterilized some rye grain January 30 (I got a wee bit excited and got ahead of myself). Will the grain still be hydrated enough to inoculate? Also do you have to add air vents in the tote you place the inoculated jars in?

I have a question I seen in the background on the left side at 12.20 you have glass jugs and I recognized the plastic thing on top that looks like a bubbler and was just wondering what you used those for? I had a few of those that I found and couldn't figure it out so I put a little water in the chambers and used it as a bubbler for a gravity bong worked well but heat and plastic don't get along lol

where can i see your video of the different canning jar lid setups for putting in PC. Thanks.

Waiting that 10min helped me stop breaking the bottom of my LC jars. Maybe a coincidence,I don’t know.

A few questions for you sir. How much LC ml do you put in each jar roughly? was the total spawn time 2-3 weeks? How long can your colonized jars last if you want to put it off for a bit, can you fridge them into dormancy? or is it best to colonize the bulk substrate blocks and store those a bit like store bought mushroom kits. Im trying to get a feel for the timeline for the various steps and shelf life on those steps. Thanks! appreciate the content.

Thanks for this. I have done some grain spawn by putting it in an Instant Pot with excess water for 5 minutes, and immediately releasing the pressure, then air drying it like you show. It seems to give the right amount of moisture without bursting any grain. I hope I didn't miss this in the video, but I was wondering if you see any benefit from adding gypsum or a small amount of sawdust to the grain spawn. Some folks seem to say that a small amount of a future substrate will help the speed of growth in the end. And gypsum for the sulfur. I guess I've done it without gypsum before, too, but I don't think I have done it enough to notice a difference. Others say add 1/2 teaspoon of lime per jar to keep the pH from dropping too low. Any thoughts on that stuff? Thanks again. Very straightforward videos with subtleties on the art explained well.

13:04 I love the passive roast 😂

Hi , thanks for great video, can you use wheat grains and cut maize , known as mixed corn for chickens, many thanks

Do you prefer working with the flow hood to the side? I'm about to build a hood but not looking forward to facing directly into the wind, which seems to be the usual orientation. I'm going to try your suggestion of wheat -- many of my popcorn spawn jars seem to start out ok but then stall and gradually get ugly. I don't see mold until they've gone seriously downhill so I wonder if contamination can develop so gradually?

super video, just one question , why plastic lids over Metal?

Another great video. I learned my lesson when I made 3 different LC jars from the syringe's I got from Gary. I wiped them down with alcohol before putting them in the SAB. The labels disappeared in a instant. Needless to say I was worried about getting the 3 mixed up before I could re-label them. Live and learn. Cordicep update: I put them in a grow tent on the 16th and I just looked and they are colonizing but I see 3 or 4 dark specks which I guess is mold.😞 anyway to save them ? I did everything in front the flow hood but as I mentioned earlier I had to keep going in and out the room to the outdoors. I'm wondering if I could transfer the clean substrate into jars to salvage the grow? Is all lost at this point? Thanks

What were the carboys and airlocks for? Just noticed it in the background and was curious.

on 9-12-22 i used my 6 qrt.pressure cooker to process 1 bag of rye grain , i just wraped the top of the bag around the grain and covered up the filter patch ; when i took it out of the p.c. the bag was loose and had a lot of condensation inside . can i put the grain into a towel to dry if again and the refill the bag and process it with the filter patch uncovered this time. ? thanks .please a.s.a.p.

That’s very interesting, thank you. I used to soak then put my grain in boiling hot water and just let it sit heat turned off for about 30min. This way the grain gets extra plump (the light cooking makes it suck more water than just the initial soaking. It used to work just fine, yet since a few weeks I’m running into sour rot contamination problem which had me ditch so many grain jars. I am then switching to your technique to put a dryer grain into my grain spawn jars. Let’s hope I get rid of this awful bacteria 🤞

Random question, is the term field capacity refer to grains or only substrates of wood, manure, straw ect.? Just for my own information. Thx

If you don't use all your lc do you have to take off the needle and put the luer lock tips back on or can you just leave needle and cap it

. 1 question that I have is What I have going on is freshly planned Hardwood Sawdust. Do I have to prepare the sawdust Before I Add from the jars. .

Your lids have self healing injection ports but is there nothing to allow for gas exchange?

I'm thinking on getting into growing mushrooms now having said that I'm into making wine,beer and "other" form of alcohol this also needs to be sanitized and I use "Star sand" do you think I can use this as a sanitizer for this new endeavor?🤔

What temperature do you shoot for when incubating the jars?

Would you do anything differently if you were using cracked corn instead?

After transferring grain spawn to my sterile strata do I have to have an air filter on meh poly bag?

Do we loosen the jars while in the pressure cooker and c9ver with foil?

🇰🇪 Very insightful.✅

If you used spores instead of LC would you squirt it in the jar differently?

Is there a reason you don't use the metal lids with inoculation ports, etc.?

I find I get far less contamination in jars than bags. I work in front of a flow hood too..

Assuming you refrigerate your spawn jars, how long can you wait between PC and inoculation?

I never leave the rocker weight off. I leave it on the whole time and everything continues to work fine.

great video!!! LOL @ "wetter is better" comment

Can you store fully colonized grain jar spawn in fridge, with the intention to be taken out later to inoculate substrate?

I just got jars exactly the size in this video and they are almost ready, but I’m not sure what to do next. My first ones were in small jars that I “birthed” and kept cakes. Do you do the same with larger grain spawn jars? I can’t find any info on what to do next. Thank you🙏

I have stored wheat that is several years old. Can I use this older wheat for this process?

The reason you leave the rocker off, to vent it making sure there's no blockage. You can accomplish the same thing by sicking through the vent. You'll know if it's clear.

Can I use this same method with oats? Great video!❤

New to mushrooms and I really like and appreciate your videos. I am having a terrible time getting my grain spawn to grow. Every batch is contaminated(10). I wash hands, glove and mask up, 70% alcohol hands, jars, surfaces, flame needle then wipe with completely soaked paper towl in alcohol. Not sure what else I can do. I am using rye berries and after 4hrs drying they are not Moises to the touch. After I use PC I can see moisture in jars. Dried again and did PC 2nd time and still a little moisture on glass jar. I even turned off house ac 30 min prior to inoculation. Ideas? Thank you for your time! Brian

What size holes do you have drilled in the sides of your tote? The ones you have poly-fil stuffed in