Rapid Rhizo Pre-Poured Sterilized Agar Plates (5-Pack)
Rapid Rhizo Pre-Poured Sterilized Agar Plates (5-Pack) is backordered and will ship as soon as it is back in stock.
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Rapid Rhizo Pre-Poured Sterilized Agar Plates (5-Pack)
Description
Description
Rapid Rhizo Pre-Poured Sterilized Agar Plates (5-Pack)
Freshly poured. Lab sterile. Rhizomorphic results.
360° view: see the style of growth, fill level, and finish of each pre-poured plate.
Take your mycology work to the next level with our Rapid Rhizo Agar Plates—expertly formulated to promote fast, aggressive rhizomorphic mycelium growth. Whether you're cleaning up samples, isolating top genetics, or showcasing final transfers, these sterilized malt extract agar plates make clean culture work easier and more repeatable.
Unlike agar plates that sit on shelves for weeks, ours are made fresh daily in a controlled clean-room workflow, machine poured for precision, sealed in polyolefin packaging, and infused with chloramphenicol to help suppress common bacterial contamination. It’s the highest standard in pre-poured agar—no shortcuts.
What’s Included
- (5) 90mm Rapid Rhizo Agar Plates – pre-poured and sealed
- Custom nutrient + yeast blend designed to encourage rhizomorphic growth
- Clean-room poured with consistency-focused quality control
- Chloramphenicol added to help resist bacterial contamination*
- Sealed fresh in polyolefin packaging to help preserve moisture
- Storage: refrigerate and use within 3–4 weeks for best results
*Antibiotics can help reduce certain bacteria but do not replace sterile technique.
Why Rhizomorphic Mycelium Matters
Not all mycelium is created equal. While tomentose growth appears fluffy and matted, rhizomorphic mycelium grows in strong, threadlike strands that spread rapidly and colonize efficiently. Rapid Rhizo plates are designed to encourage this prized growth structure, making it easier to:
- Select strong sectors for faster colonization
- Isolate clean genetics through transfers
- Create showcase plates for final “keeper” cultures
Lab Precision, Every Time
All our agar is machine-prepped and machine-filled for unmatched consistency. Each batch is:
- Sterilized at 18 PSI for 30 minutes
- Dispensed with a precise 25ml fill per plate
- Cooled and capped under UV-C light
- Labeled and sealed immediately for freshness
This system minimizes human error and helps ensure every plate arrives clean, consistent, and ready for reliable growth.
Which Agar Plate Should I Choose?
Different agar recipes shine at different stages—spore germination, contamination checks, clean transfers, and final display plates. Use this guide to pick the right plate for your goal.
| Agar Type | Best For | Why Growers Use It | Recommended Stage |
|---|---|---|---|
| Rapid Rhizo (This Listing) | 2nd & 3rd transfers, clean isolation, showcase plates | Encourages aggressive, threadlike growth patterns that are easy to select and preserve | After first clean-up → final transfers |
| Regular LME / MEA | Spore germination, first plates, contamination checks | A reliable baseline media that makes early growth and contaminants easier to evaluate | Start here → first transfer |
| Black MEA | High visibility growth, photo-friendly plates, subtle sector spotting | Dark background increases contrast so mycelium edges, sectors, and early contaminants stand out | Any stage (especially when evaluating detail) |
| Manure-Enriched / Conditioning Agar | Preparing cultures for bulk substrates, performance testing | Helps “condition” cultures to richer environments and evaluate how genetics behave on supplemented media | Mid-to-late stage (after clean culture) |
Rapid Rhizo (This Listing)
Regular LME / MEA
Black MEA
Manure-Enriched / Conditioning Agar
Tip: Many growers start spores on LME/MEA, clean up on early transfers, then finish on Rapid Rhizo (or use Black MEA when contrast matters).
What Is Agar and How Do I Use It?
Agar is a jelly-like medium used to grow and isolate mycelium in sterile conditions. Add a tiny amount of spore solution, tissue, or liquid culture to the plate and incubate. In a few days, you’ll see mycelium growth—then you can transfer clean sectors into grain jars, spawn bags, or liquid culture.
Using agar lets you:
- Isolate strong mycelium
- Detect and avoid contamination
- Work with clean, vigorous cultures
- Improve reliability, speed, and overall results
See How Our Agar Plates Are Made
Watch our agar pouring machine and clean lab workflow—from sterile prep to precision fills—so you know exactly what you’re getting.
Behind the scenes: our clean-room agar prep + machine pouring workflow.
Learn More
Let customers speak for us
I have always had a great experience with Midwest products. There delivery time is fast and exactly what I ordered. Not once has my substrate been to dry or have I had any contamination. I only have two tubs going right now but definitely will be expanding soon. Thank you for great products at affordable prices.
...and that is viable liquid culture mushroom spores, enough for lots of microscope work, let me tell you.
I pre-stired the jar to show the floating mycellium after nine days. I've been real conservative on the temperature, not letting it get too high, but still I've got great growth.
Once I saw the successful first attempt, I ordered another 10 ounce kit to arrive shortly.
Hey Midwest, thanks for offering the two sizes of the LC kit. I can feel big time, while using the small kit.
Wish you had stickers so I could rep you.
Been doing some agar-related experiments in this guy along with spawn bag inouculation (which I'm not sure is necessary because I've never had a contamination from a Midwest Grow Kits spawn bag - the 5-grain ones are top doggity!)
Just what I needed. I really like the scale and the folding cover.
I’ve been using them for a couple of years and they have always given me great products and customer service is where they really shine though so if you are just starting out or like me an old hand at mushroom cultivation this is the place you need to be pictured is just one of the sizes and the picture is from a second flush also🤪
This worked perfectly as described. Easy to use and the yields were amazing. I make my own now but still get lazy sometimes and order this.
Enjoy
This thing was beautiful to grow. Exactly as described.
Couldn’t be easier or more awesome of an experience. Highly recommend due to its ease and overall experience. Not to mention the benefits from the fruits. I add dehydrated/ground fruits to my morning coffee for immune boost, anti inflammatory and energy boosting properties. You will be glad you got this one. The price is so cheap and the experience is so worth it. Enjoy
I placed my very first grow in a minitub into the automated ecosphere. It kept humidity and light schedule perfect with FAE on a timer 60 seconds on 3x a day. Fruits were huge and plentiful! Im going to fruit my BRF cakes in there next. Midwest is my main supplier of kits and materials. I have the Ultimate Kit with incubator also. Set it up per instructions and it'll serve you well for a long time!
This my second time ordering and both times have been great! No contamination and a fantastic final product. I will definitely order again.
Your products have been consistent and i get the best results with it..
Thank you for this service..
Came in 4 days
Colonized in 14 days now in fruiting chamber .
Looking forward for fresh turkey tail mushrooms.
I recently bought the Midwest Growers small mushroom monotub 2-pack (amazing price for two). They are perfect size for a colonized block! I am currently growing two shiitake blocks and one king trumpet mushroom block and the tubs make it very easy.
My second time growing. First time I bought two different brands of all in one bags from Amazon. Did not work, they both stalled and never fruited. This little kit was my last ditch effort and I’m sitting here less than 8 weeks after ordering and amazing results
I ordered 2 - 10lb blocks and was a little worried that they were plainly wrapped and different sizes. I weighed them and 1 was 8lbs the other 12lbs so the total was correct. Expanded to the expected volume (picture included of smaller block)
These are the best Monotubs on the market for the price they are built well and I wish I had 4 more lol
https://youtube.com/shorts/6uqucyx0RJk?feature=share
