RFP Response — Facility Conversion: Cannabis Flour to Kratom Powder
Prepared by: Black Rock Consultancy LLC — Botanical Process Engineering Team
Date: May 2026
Status: Phase 2 Operations deliverable
Disclaimer: Not legal advice. Not a binding quote. Counsel must verify licensing before category change.
Supporting documents:
- 02-EQUIPMENT-GAP-MATRIX.md
- 03-TERMINOLOGY-CROSSWALK.md
- 04-COST-FRAMEWORK.md
- 05-SCENARIO-A-HARD-CHANGEOVER.md
- 06-SCENARIO-B-PHASED-OPS.md
- 07-PM-AND-DISCOVERY-SOP.md
- 08-BENCHMARK-RESEARCH/
- 09-FACILITY-QUESTIONNAIRE.md
Executive summary
Black Rock Consultancy provides a structured methodology for converting cannabis flour and/or extraction facilities to high-volume kratom powder manufacturing aligned with AKA GMP practices (modeled on 21 CFR Part 111).
Key findings:
- ~60–70% unit-operation overlap between cannabis dry milling and kratom powder (clean, mill, sieve, blend, pack).
- Critical gaps: validated microbial kill step, dust/HVAC upgrade for finer powder, supplement batch system (replacing METRC), alkaloid + Salmonella COA panels.
- Complexity: 7/10 (flour conversion, Scenario A); 8/10 (extraction-only or Scenario B).
- Default path: Scenario A hard changeover — 10–14 weeks to first production run (base case).
- Discovery required: Site walkdown before firm CapEx; use 09-FACILITY-QUESTIONNAIRE.md.
We map three current-state paths (flour, extraction, hybrid) and two inbound kratom scenarios (raw leaf, pre-milled import).
Section 1 — Commonalities vs. variances (equipment gap analysis)
1.1 Cannabis flour line (reference current state)
See full mapping in 02-EQUIPMENT-GAP-MATRIX.md §1.
Components: receiving dock → quarantine → cleaning (destoner, magnet) → optional drying → hammer/pin/roller mill → plansifter → ribbon blender → auger fill → metal detector → dust collection (pulse-jet, explosion venting) → METRC track-and-trace → potency/moisture QC.
1.2 Extraction stack overlay (Black Rock pipeline)
See 02-EQUIPMENT-GAP-MATRIX.md §2.
Components: CO2 / hydrocarbon / ethanol extraction → dewax → distillation → formulation → vape/edible packaging. Not required for powder-only kratom but supports extract SKUs and hybrid pivots.
1.3 High-volume kratom powder line (target state)
See 02-EQUIPMENT-GAP-MATRIX.md §3 and benchmarks in 08-BENCHMARK-RESEARCH/.
Stages: supplier qualification → import receiving → quarantine until COA → validated kill step (steam pasteurization most common — Super Speciosa, Kraken) → coarse + fine mill (40–80 mesh) → blend-before-test → sieve → metal detect → pack/label (batch QR) → ISO 17025 third-party release.
1.4 Overlap summary
| Immediate reuse | Retrofit | Fail / net-new |
|---|---|---|
| Mills, sieves, blenders, packaging, scales, metal detectors | Dust collection CFM/HEPA; cleanout validation; labelers | Kill step; METRC→111 LIMS; shared mill without validation |
1.5 Inbound material variance
| Path | Implication |
|---|---|
| Raw dried leaf | Full grind; drying validation; moderate kill-step load |
| Pre-milled import | Skip coarse grind; highest microbial risk; kill step + blend-before-test mandatory |
Section 2 — Bridging terminology and process gap
Full glossary: 03-TERMINOLOGY-CROSSWALK.md.
| Cannabis | Kratom / supplement |
|---|---|
| METRC | Batch/lot master (21 CFR 111.415) |
| THC/CBD potency | Mitragynine / 7-OH alkaloid profile |
| Processor license | KCPA + FDA facility registration + AKA GMP (voluntary) |
| QA release (state) | QCU release per 111.103 |
| Remediation | Kill-step validation, rework SOP |
| Cannabis COA | ISO 17025 third-party micro + metals + alkaloids |
QA/QC shift: From cannabinoid-centric state panels to Salmonella, E. coli, yeast/mold, heavy metals, alkaloid identity/strength on every lot — dual-lab testing recommended (Kraken Kratom model).
Material handling shift: METRC manifests → import documentation + supplier qualification files + quarantine-until-tested.
Section 3 — Cost and complexity
Full framework: 04-COST-FRAMEWORK.md.
Complexity rating
| Profile | Score |
|---|---|
| Flour → powder, Scenario A | 7/10 |
| Extraction-only → powder | 8/10 |
| Scenario B concurrent | +1.0 |
Major cost drivers
- Kill-step equipment + validation ($75k–$400k+)
- HVAC / dust upgrades ($50k–$250k)
- Segregation (Scenario B: $100k–$500k)
- QMS / SOP build ($40k–$120k)
- Per-lot testing OpEx ($400–$900/batch)
- Licensing / counsel
- Downtime revenue gap (Scenario A)
TCC formula
TCC = CapEx_retrofit + CapEx_new + validation + QMS + licensing
+ (downtime_months × monthly_fixed_cost) [Scenario A]
+ segregation_premium [Scenario B]
− salvage/resale
Base case Scenario A TCC (incl. 3 mo downtime): ~$715k (range $355k–$1.34M).
Section 4 — Baseline knowledge vs. discovery
4.1 Confirmed baseline knowledge
| Topic | Understanding |
|---|---|
| Physical processing | Kratom powder is physical milling — alkaloid degradation from excessive heat is a design constraint |
| Bulk density | ~0.35–0.55 g/mL; affects auger fill and dust generation |
| Flowability | Moisture-dependent; pre-milled import often bridges in hoppers |
| Microbial | Salmonella and E. coli are primary public-health specs; 2017–18 CDC multistate outbreak linked to kratom products |
| Import material | Pre-milled Southeast Asian powder frequently fails micro on receipt without kill step |
| AKA GMP | Voluntary but de facto buyer requirement; modeled on 21 CFR Part 111; annual third-party audit |
| Equipment overlap | Flour lines share ~60–70% unit ops with kratom powder; extraction lines need net-new milling |
| Benchmark processes | Super Speciosa: pasteurization + blend-before-test + QR COA; Kraken: dual-lab + environmental monitoring |
4.2 Team experience statement
Black Rock's Cannabis Lab Pivot architecture (Resources/Black Rock 2.2.md) includes chemist-supported process design, SOP development, and supply chain coordination. This RFP package codifies facility conversion methodology informed by public AKA GMP vendor practices and cannabis processing infrastructure patterns in our prospect pipeline.
We do not present this document as a substitute for on-site engineering validation or regulatory counsel.
4.3 Discovery still required
| Item | Why |
|---|---|
| Site layout and AHU zoning | Scenario A vs B decision |
| Equipment MOC and cleanability | Reuse vs net-new |
| Dust collector CFM vs throughput | CapEx sizing |
| License scope and category-change path | Go/no-go |
| Inbound mix (% raw vs pre-milled) | Line design |
| Kill-step method tolerance | CapEx and labeling |
| Existing lab contracts | OpEx model |
Discovery phase: 2–4 weeks per 07-PM-AND-DISCOVERY-SOP.md.
Section 5 — Transition phasing and execution scenarios
Scenario A — Hard changeover
Full detail: 05-SCENARIO-A-HARD-CHANGEOVER.md.
Critical path: shutdown → decon (THC swab clearance) → retrofit (kill step, dust) → IQ/OQ/PQ → SOP/training → 3 pilot lots → commercial release.
Downtime: 10–14 weeks base; 8 aggressive / 20 conservative.
Scenario B — Phased simultaneous ops
Full detail: 06-SCENARIO-B-PHASED-OPS.md.
Feasible only with dedicated mills, separate AHUs, segregated QA flows, dual track-and-trace. +30–50% CapEx vs A; highest compliance failure mode.
Strategic recommendation
Use facility layout scoring:
Score = reuse_pct − segregation_cost − dual_audit_risk − downtime_tolerance
| Condition | Recommend |
|---|---|
| Good mill/pack reuse; cannabis wind-down OK | Scenario A (default) |
| Must preserve cannabis revenue 3–6 mo; separate bays | Scenario B bridge → A |
| Single shared mill + single AHU | A only — B not viable |
ROI: Scenario A = lower total cost, faster AKA GMP, single audit. Scenario B = preserves cash at segregation premium and dual-framework risk.
Immediate outreach: Head of Honey (OK) — verified contact, KCPA state; lead with Scenario A + 09-FACILITY-QUESTIONNAIRE.md.
Section 6 — Transition execution and project management
Full SOP: 07-PM-AND-DISCOVERY-SOP.md.
Facility baseline cataloging
- Pre-mobilization: NDA, questionnaire, counsel intro
- Day 1–2: photo walkdown, nameplate capture
- Day 3–4: process mapping (flour + extraction flows)
- Day 5: airflow / combustible dust assessment
- Week 2: gap workshop → scenario and BOE
PM strategy
- Weekly status on schedule, CAPA, CapEx, supply, risks
- Gate reviews: Discovery → Feasibility → Supply alignment → Controlled launch
- Risk controls: No scale without kill-step validation; no PO >$25k without compliance checkpoint; no commingled batch records
Black Rock role (per engagement model)
| Lab owns | Black Rock provides |
|---|---|
| Facility, operators, license, release | Supply, conversion roadmap, chemist/SOP support, QA structure, buyer intros |
Benchmark and conversion research
| Type | Companies | Location |
|---|---|---|
| Kratom manufacturers | MIT45, Super Speciosa, Kraken Kratom, Happy Hippo, OTEMFG | 08-BENCHMARK-RESEARCH/ |
| Conversion targets | Wasatch, Head of Honey, Sunday Extracts, Green Therapeutics, Colorado Cannabis Co. | Same folder + Prospects/prospects.master.csv |
Note: Research targets only — not confirmed partners. California manufacturing targets excluded from conversion outreach (CDPH enforcement).
Next steps
- Return completed 09-FACILITY-QUESTIONNAIRE.md
- Schedule discovery walkdown (on-site or hybrid)
- Feasibility memo with scenario recommendation and BOE range
- Supply alignment gate before pilot commitments
- Controlled production launch with third-party COA pass
Contact path: Discovery call via Cannabis Lab Pivot program — [email protected] (confirm before external use).
Black Rock Consultancy LLC — Source the leaf. Convert the lab. Build the bridge.