Description

Bulk MushBag™ All-In-One Mushroom Grow Kit – 25–1000 Unit Packs

Scale up your mushroom production with lab-prepped millet, milo grain & CVG substrate blend that’s ready to inoculate. Built for growers who care about consistent colonisation, clean results, and a supply they can actually rely on.

Each MushBag™ all-in-one grow kit is prepared in cleanroom conditions and sterilised in a computer-controlled autoclave, taking the guesswork out of prep so you can focus on growing, not fixing problems.

Choose 1.5kg or 2kg bags in 25, 50, 100, 250, 500 or 1000 unit packs for commercial consistency and better unit economics.

Need trade support, custom scheduling, or a tailored quote? Contact us and we’ll build a supply plan around your volume.

Wholesale‑Ready MushBag™ All-In-One Mushroom Grow Kit

This is our best-selling sterilised millet, milo grain & CVG substrate blend, optimally hydrated and sealed in an injection-port bag - designed as a fast, contamination-resistant foundation for mushroom production.

Ideal for

• Commercial farms and scaling growers who rely on consistent cycle times and repeatable results
• High-volume hobby growers who want access to wholesale pricing without complicated sourcing
• Retailers and resellers looking for a reliable, high-performing sterile grain range

Not a Bulk Buyer?

This page is for trade, wholesale, and high‑volume growers ordering 25–1000+ units.

If you’re a hobby grower or want to trial smaller quantities first, use our standard (non‑bulk) listing here.

Key Advantages

• Direct from the source - You get the best price. It's all about direct supply from a top UK mushroom supplier.
• Scale whenever you’re ready - Need 25 now or 1,000+ regularly? We’ve got you covered year-round.
• Fast colonisation - Our millet + milo grain blend provides loads of growth points, so mycelium can establish fast on grain and then move efficiently into the CVG substrate - no extra mixing or transfers.
• Clean, commercial-grade sterility - Each batch is sterilised for 2.5 hours at 121°C in a computer-controlled autoclave at our Kent facility, giving you a contamination-free start.
• Perfectly balanced moisture - Grain and bulk substrate are hydrated just right to encourage healthy, vigorous growth without inviting bacteria.
• High-quality filtration - 0.2-micron filter patches let the bags breathe while helping keep contaminants out - so you get more consistent results.
• Self-healing injection ports - Make inoculation straightforward, whether you’re using spores or liquid culture.

What You Get

• Bulk packs 25–1000 to match your production runs
• Two bag weights: 1.5kg or 2kg to fit different SOPs
• Optimally hydrated millet, milo grain & CVG substrate blend for rapid colonisation
• Cleanroom-prepped and ready to inoculate on arrival
• Sterilised in a computer-controlled autoclave (2.5 hrs @ 121°C)
• Lifetime Guarantee (we stand behind every bag)
• Free UK delivery on £50+ orders helps protect margins
• Pay in 3 interest-free instalments available at checkout

Built For

Product Sellers (retailers, resellers, garden centres)

• Building a sterile all‑in‑one grow bag line with repeatable results
• Offering case quantities for serious growers
• Improving customer outcomes with a proven grain + CVG substrate blend and guarantee

Growers (commercial & high-volume)

• Routine inoculation runs with consistent, clean all-in-one grain + CVG substrate blend
• All-in-one workflows (inoculate → colonise → fruit in-bag)
• Faster SOPs: no soaking/cooking/sterilising on your end

Perfect For

• Simplified mushroom growing with fewer handling steps
• Fast take off with repeatable results in a single ready to inoculate bag
• Cycle consistency when you need predictable colonisation windows (typically 3–4 weeks, culture-dependent)

What’s Included

• 1.5kg or 2kg of our proprietary millet, milo grain and CVG substrate bag (per unit)
• Humid Fruiting Tent
• Ultra Fine Mister
• Sterility Kit
• Lifetime Guarantee coverage

Not included: spore or liquid culture syringe.

How It Works

1. Sanitise your workspace and wipe down the injection area on the bag.
2. Inject your liquid culture through the self healing injection port. Use sterile technique and keep the needle and port clean.
3. Allow the substrate to colonise. Once at around 30% mycelium coverage, mix the bag fully.
4. After full colonisation, fruit either directly from the bag, in a fruiting chamber or in the fruiting tent provided.

Quality Guarantee

At Martian Mushrooms, we don't just sell supplies; we use them.

Every batch is produced with lab-first discipline: grain and substrate are soaked/cooked, optimally hydrated, and sterilised in a computer-controlled steam autoclave for 2.5 hours at 121°C.

If something goes wrong, you’re protected by our Lifetime Guarantee - built for growers who can’t afford downtime.

Technical Specifications

Martian Mushrooms vs. Competitors

Don't let grain & substrate prep slow you down. Ensure your supply chain with the UK's most reliable bulk MushBag™ mushroom grow kit.

Need a custom quote, white labelling, or pallet pricing (100+ units)?

Join our Growth Partner Program.