Liquid Graphite Heating Mat
Liquid Graphite Heating Mat is backordered and will ship as soon as it is back in stock.
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Liquid Graphite Heating Mat
Description
Description
Liquid Graphite Heating Mat – Even Infrared Heat with Zero Hot Spots (21" x 11")
Maintain stable, consistent incubation temperatures with the Liquid Graphite Heating Mat. Unlike traditional wire-based heating pads that create dangerous hot spots, this advanced infrared heating mat uses liquid graphite technology to distribute heat evenly across the entire surface. The result? Reliable warmth without overheating your substrate, drying out your grow, or warping plastic bins.
Designed specifically for monotubs, incubation chambers, grain jars, and spawn bags, this 21" x 11" heating mat delivers efficient bottom heat while using just 28 watts of power. It’s a smarter, safer solution for growers who demand consistency.
Why Growers Choose This Heating Mat
- Even Surface Heating – Liquid graphite core eliminates hot spots
- Infrared Heat Transfer – Warms solid surfaces instead of heating the air
- Energy Efficient – Uses only 28W while delivering powerful performance
- Adjustable Temperature Dial – Fine-tune output from approximately 67°F–86°F
- Perfect for Monotubs & Incubation – Designed for bottom heat applications
- Safe & Stable – No exposed heating wires
How It Works
Traditional heating pads rely on internal wire coils that create uneven warmth and concentrated hot spots. This heating mat uses liquid graphite infrared technology to distribute heat evenly across the entire surface area.
Infrared heat transfers through solid materials instead of heating the surrounding air. This makes it ideal for controlled grow environments where stable bottom heat is essential for colonization and incubation.
How To Use (Step-by-Step Setup)
Follow these simple steps to properly dial in your incubation temperature:
1. Placement
Place the heating mat on a flat surface. If setting up on cold concrete floors, lay down a Mylar space blanket first to reflect heat upward.
2. Add a Buffer Layer
Place a thick towel or folded cloth on top of the heating mat. Never place bins or jars directly on the mat without a buffer layer.
3. Position Your Grow Container
Set your monotub, grain jars, or spawn bags on top of the towel and close the lid.
4. Dial Adjustment
Turn the dial to maximum briefly to confirm it is warming. Then reduce to approximately 50% power to establish a baseline. Allow at least one hour for temperature stabilization before adjusting further.
Important: The dial does not have markings. Once you find the ideal temperature setting for your room, mark the dial position with a pen or permanent marker for future reference.
Recommended Temperature Range: 72°F – 76°F for most tropical strains (some may tolerate 74°F – 78°F).
For maximum precision and automatic regulation, pair this mat with our Digital Temperature Controller Thermostat for hands-free stability.
Technical Specifications
| Dimensions | 21" x 11" |
| Power Usage | 28 Watts |
| Heat Technology | Liquid Graphite Infrared |
| Voltage | 110V–120V Only |
| Best Use | Monotubs, incubation bins, jars, spawn bags |
| Skill Level | Beginner to Advanced |
Pro Tips for Best Results
- Always use a towel buffer layer
- Never place the mat inside your grow chamber
- Use Mylar on cold floors to reflect heat upward
- Recheck temperature when seasons change
- Pair with a temperature controller for automatic regulation
Upgrade your incubation setup with safer, more consistent heating. The Liquid Graphite Heating Mat is built for growers who want stable temperatures, faster colonization, and better control year-round.
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
