Willy's Blend - Willy Myco's Official Premium Imported Manure-Based Substrate - 5 lbs
Willy's Blend - Willy Myco's Official Premium Imported Manure-Based Substrate - 5 lbs is backordered and will ship as soon as it is back in stock.
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Description
Description
Willy's Blend is Willy Myco's official manure-based mushroom substrate, made with aged manure and ingredients imported from Brown Treasure in Puerto Rico. Midwest Grow Kits is the only official producer and vendor of Willy's Blend in the continental U.S.
It's the same blend that has shown up in Willy's tutorials and side-by-side grows for years. We produce it from our Illinois facility in partnership with Willy Myco and Brown Treasure, so growers across the U.S. get it fresh, faster and without the cost of shipping from Puerto Rico.
- 5 lbsPer bag
- 2+ yrsAged manure
- 6Proprietary additives
- 160°FPasteurized 3–4 hrs
- 45 daysBest within, sealed
Why growers pick Willy's Blend
- The real recipe – Willy Myco's own blend with official ingredients from Brown Treasure in Puerto Rico — no substitutions.
- Aged manure base – Exotic manure naturally leached and dried for at least 2 years, rich in the micro- and macronutrients mycelium feeds on.
- Six proprietary additives – Rounded out with six additives from Willy's formula.
- Ready to use – Pasteurized at 160°F for 3–4 hours and hydrated — mix it straight with colonized grain spawn.
- Made in the USA – Mixed, prepared and shipped from our Illinois facility for faster, lower-cost delivery.
Official partnership. Willy's Blend is produced by Midwest Grow Kits in partnership with Willy Myco and Brown Treasure. We're the only official producer and vendor in the continental U.S.
What growers report
- Strong, fast colonization
- Thick, resilient mycelium
- Good water retention without a muddy texture
- Reliable fruiting from a forgiving substrate
Real results from growers using Willy's Blend.
How to use it
- Start with fully colonized spawn. Grain spawn bags or jars should be completely white before you spawn to bulk.
- Break up the spawn. Massage the bag or shake the jar until the grain separates into loose kernels.
- Open the substrate. Crumble any clumps so the substrate is loose and even.
- Mix it in the tub. Combine spawn and substrate evenly in a clean monotub or tray, then level and lightly press the surface.
- Colonize, then fruit. Cover and leave it undisturbed until the surface is colonized, then introduce fruiting conditions.
How much spawn per bag?
- 1 to 1.5 grain spawn bags per 5 lb bag
- About 3 quick-colonizing 24 oz jars per bag
- About 6 half-pint jars per bag
Specifications
| Specification | Detail |
|---|---|
| Weight | 5 lbs per bag |
| Base | Exotic manure, aged and naturally leached for 2+ years |
| Additives | 6 proprietary additives (Willy Myco formula) |
| Ingredients | Imported from Brown Treasure, Puerto Rico |
| Produced | Mixed and prepared by Midwest Grow Kits in Illinois |
| Treatment | Pasteurized at 160°F for 3–4 hours |
| Spawn per 5 lb bag | 1–1.5 spawn bags, ~3 × 24 oz jars or ~6 half-pint jars |
| Storage | Sealed, cool and dry; best within 45 days at room temp; do not freeze |
Storage: Keep bags sealed in a cool, dry place and use within 45 days at room temperature for best results. Do not freeze.
Compare our bulk substrates
| Substrate | Base | Treatment | Best within |
|---|---|---|---|
| Select Bulk Substrate | Coco coir, vermiculite, gypsum (CVG) | Pasteurized | 6 months refrigerated |
| Black Cow | Composted dairy cow manure + coir and vermiculite | Pasteurized, 160°F for 3–4 hrs | 45 days, room temp |
| Willy's Blend (this one) | Aged imported manure + 6 proprietary additives | Pasteurized, 160°F for 3–4 hrs | 45 days, room temp |
Complete the Willy setupCondition your cultures on Willy's Blend agar plates, then spawn to bulk with our Premium 5-Grain Spawn Bags.
FAQ
Is this Willy Myco's actual blend?
Yes. Willy's Blend is made with official ingredients imported from Brown Treasure in Puerto Rico and produced by Midwest Grow Kits in partnership with Willy Myco. We're the only official producer and vendor in the continental U.S.
What is it made of?
Exotic manure aged and naturally leached for at least 2 years, plus six proprietary additives from Willy's formula.
Is it pasteurized and ready to use?
Yes. It is pasteurized at 160°F for 3–4 hours and hydrated, so you can mix it straight with fully colonized grain spawn.
How much spawn do I need?
Plan on 1 to 1.5 grain spawn bags, about 3 quick-colonizing 24 oz jars, or about 6 half-pint jars per 5 lb bag.
How long does it keep?
Keep bags sealed in a cool, dry place and use within 45 days at room temperature. Do not freeze.
Why is it made in Illinois instead of Puerto Rico?
Shipping from Puerto Rico is slow and expensive. Producing it from our central U.S. facility with imported ingredients means faster delivery, lower shipping costs and a steadier supply.
Willy's Blend or Black Cow?
Black Cow is our dairy-manure mix with coir and vermiculite. Willy's Blend is Willy Myco's own aged-manure recipe with imported ingredients and six proprietary additives.
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