A pre-sated, bio-activated carbon matrix fusing macadamia GAC and 4-1-6 CFT vermicast to permanently catalyze tired soil biomes.
Stop adding temporary microbes—ignite a permanent soil biology engine.
Raw biochar acts as a nutrient sink until its pores are balanced. Terra Preta Grande eliminates that lag phase. Premium macadamia-shell Granular Activated Carbon is first pre-sated with calcium, then co-conditioned inside a mature Continuous Flow-Through (CFT) vermicast matrix. The result is a ready-to-use Biological Soil Catalyst that delivers living biology with zero nutrient lock-out.
The Dual-Phase Carbon Engine
Our dual-phase carbon matrix (≈6 of the finished product volume) works in two complementary ways
- 4% Sated Granular Activated Carbon (SAC): high-surface-area macadamia micropores that permanently raise cation exchange capacity and provide a lasting, UV-protected habitat for beneficial bacteria and mycorrhizal fungi.
- 2-4% Starch-Bound Charcoal Matrix: a rapid labile carbon source that fuels immediate microbial colonization when blended into the vermicast.
The carbon is fully colonized inside mature, sifted CFT vermicompost before controlled air-drying. This anchors plant-growth-promoting rhizobacteria (PGPR), humic acids, plant growth hormones and enzymes into a permanent carbon framework that remains active in the root zone long after ordinary inoculants have washed away.
Key Features & Highlights:
- Zero Soil Shock — Pre-sated with calcium to prevent the temporary nutrient draw common with raw biochar.
- High-NPK Biological Base — Co-conditioned in mature CFT vermicast with a natural 4-1-6 NPK profile.
- Permanent Catalyst Base — Porous GAC micro-habitats stay in the root zone indefinitely.
- Gas-Exchange Packaging — Breathable liner maintains 40–50% moisture so the living microflora can breathe.
- Clean & Organic — Biological conditioning only. No synthetic additives. Low odour and 100% safe.
- STS Tested — Developed and biologically validated at the Sustainability Testing Station.
Application Methods:
- Living Soil & Potting Blends: Mix 5% by volume of organics/compost into planting mediums.
- Seedlings: 1 teaspoon (5 ml) in the planting hole.
- Transplants: 2–4 tablespoons (30–60 ml) in the planting hole for direct root contact.
- Top-Dressing: Cup (250ml) per m² around the drip line of beds, trees or high-value crops.
- Compost Catalyst: 1 cup (250ml) per 30 L of compost to jump-start biology.
- Worm Farms & Bokashi: 1 tablespoon per litre (15ml) of organic scraps to accelerate breakdown.
Storage:
Packaged in a breathable BOPP/LDPE bag with a custom collar filter that allows the soil biome to respire while holding optimal moisture. After use, re-insert the bag into the collar and store in a cool, dark place out of direct sunlight.
Feed the Biology. Build the Soil.
Why BAC!
Why Bio-Activated Carbon (BAC!)?
Most microbial inoculants simply introduce microorganisms to the soil profile. Once their immediate food supply is exhausted, these populations decline or wash away during irrigation.
VermisCHAR BAC! solves this by introducing a complete living soil biome already established inside a permanent, dual-phase carbon habitat. Our macadamia-shell GAC is first pre-sated with calcium ions to satisfy its natural Cation Exchange Capacity (CEC). It is then biologically colonized within a mature CFT vermicompost ecosystem alongside a starch-bound charcoal matrix before controlled air-drying.
| Feature |
Conventional Inoculant |
VermiCHAR BAC! Catalyst |
| Microbial Carrier |
Inert / temporary carrier |
Sated GAC + Starch-Bound Charcoal |
| Food Source |
None included |
Built-in labile carbon energy surge |
| Surface Area |
Minimal attachment sites |
High internal micro- and macro-porosity |
| Soil Persistence |
Carrier decomposes rapidly |
Carbon habitat remains permanently |
| Rhizosphere Impact |
Temporary microbial surge |
Permanent biological ecosystem anchor |
Rather than adding temporary microbes, VermiCHAR BAC! builds a permanent soil biology engine.
How made
The VermiCHAR BAC! Manufacturing Process
VermiCHAR BAC! is produced through a controlled 5-stage biological conditioning process developed at the Sustainability Testing Station (STS). Each batch develops as a living ecosystem before packaging.
- Stage 1 — Sated Activated Carbon (SAC): Premium macadamia-shell granular activated carbon is conditioned to satisfy its natural Cation Exchange Capacity (CEC) with calcium, preventing nitrogen and nutrient lock-out.
- Stage 2 — Dual-Phase Carbon Blending: Sated SAC is combined with starch-bound charcoal to supply both permanent pore structures and a rapid labile carbon source.
- Stage 3 — Biological Conditioning: The carbon matrix (SAC and starched biochar) is mixed into mature, biologically active Continuous Flow-Through (CFT) vermicast where living microflora naturally colonize the pores over a 2–3 week period.
- Stage 4 — Controlled Air Drying: The material is slowly air-dried to ~40–50% moisture content, stabilizing the product for storage while preserving the entrained soil biome. During this phase, it is twice-sifted while airing to remove worms from hatched cocoons.
- Stage 5 — Gas-Exchange Packaging: Packed in autoclavable polypropylene containers that maintain required moisture levels while allowing vital gas exchange for living micro-organisms.
Living Biology. Permanent Carbon. Complete Soil Biome.
Pros & Cons
PROS: Biological Propagation (Liquid Expansion Brew)
While VermiCHAR BAC! provides a permanent carbon home in the soil, you can rapidly expand (propagate) the living microflora into a liquid drench to cover vast garden areas:
- Dissolve: Add 1 tablespoon of brown sugar or unsulphured molasses to 1 Liter of dechlorinated water.
- Inoculate: Stir in 1 tablespoon of VermiCHAR BAC!.
- Brew: Let sit overnight (<8 hours) at room temperature to wake up and exponentially multiply the bacteria, fungi, and protozoa.
- Spread the Wealth: Drench directly into garden beds, potted plants, compost piles, or drains to distribute active biology everywhere.
CONS: Key Handling & Storage Considerations
- Keep Moisture Intact: Always close the tub after use. Allowing the product to dry out below 25% moisture content causes living biology to go dormant or decline.
- Protect from Direct UV: Store in a cool, shaded spot. When top-dressing garden beds, cover with a thin layer of mulch to shade the surface microflora from harsh midday sun.
- Dosing Limits: Use at 5%–10% by volume in soil mixes. Exceeding 20% in small pots can increase porosity too much, causing light mixes to dry out faster than desired.
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