Prop 65 Compliance for Matcha Powder (Whole-Leaf Exposure + Heavy Metals + Origin/Region Traceability)

Why This Matters

California Prop 65 applies to food—and matcha is uniquely exposed because it is the only tea commonly consumed as a whole leaf powder. That means the consumer ingests the leaf’s full metal load rather than a diluted brew fraction.

Prop 65 Enforcement Trends (2024–2026)

The brief emphasizes that enforcement is increasing, not slowing down.

• 2023: ~3,200 NOVs
• 2024: ~4,100 NOVs
• 2025: ~5,000 NOVs
• 2026 (projected): ~5,800 NOVs

• ~38% — food & supplements share (largest single category in 2025)
• ~$86M — 2026 settlements (majority paid to attorneys)

Why Matcha Powder Is at Risk

The brief frames matcha risk as a compounding chain: environmental loading + agronomic practices + processing + whole-leaf ingestion.

• Soil & air: tea leaves can absorb lead from both soil and air pollution
• Shading: 3–4 weeks of shading increases root uptake of metals
• Grinding: stone mills pulverize the whole leaf into powder
• Whole leaf: 100% of leaf metals ingested vs ~20–30% extraction in brewed tea

Primary Chemicals of Concern (From the Brief)

• Lead (Pb) — MADL 0.5 µg/day
• Cadmium (Cd) — MADL 4.1 µg/day
• Inorganic Arsenic — NSRL 10 µg/day
• Mercury (Hg) — MADL 0.3 µg/day

The brief also flags independent lab testing (2025) indicating matcha can test above Prop 65 thresholds across multiple metals.

Business Impact of Non-Compliance

• 60-Day Notice of Violation: plaintiff files with the AG; response clock starts immediately
• Settlement exposure: typical settlements $20K–$100K+ per action, plus attorney fees
• Relabeling & reformulation: product pull risk, warning labels added, sourcing reviewed
• Retail & distributor pressure: buyers demand evidence of compliance before reinstatement/renewal

Most companies settle—not because they’re guilty, but because documentation is weak.

What We Deliver

An end-to-end Prop 65 compliance program—not a one-time report.

• Product risk assessment
• Chemical testing oversight
• Exposure evaluation
• Compliance determination
• Warning label strategy
• Supplier compliance program
• Documentation system
• Ongoing monitoring

Each component is documented, traceable, and audit-ready.

Core Technical Components

• Heavy metal testing (ISO/IEC 17025): Pb (MADL 0.5 µg/day), Cd (MADL 4.1 µg/day), Inorganic As (NSRL 10 µg/day), Hg (MADL 0.3 µg/day)
• Exposure vs MADL evaluation: serving-size, daily exposure, and averaging calculations to determine whether a warning is required
• Supplier COA verification: origin-region (e.g., Uji, Nishio, Kagoshima), tea-garden, stone-grind lot, and packaging supplier COAs cross-checked against screening thresholds
• Batch-level compliance review: every lot logged, reviewed, and tied to a compliance determination on file
• Warning label determination: clear “warn vs no-warn” logic documented and defensible against private enforcement

Supply-Chain Compliance Control

Prevent the issue upstream—before it reaches your label.

• Supplier attestation: certifications and declarations collected from every raw-material vendor
• Raw-material risk mapping: inputs classified by heavy-metal exposure profile
• COA tracking: every batch COA verified against screening thresholds
• Corrective action (SCAR): supplier corrective actions logged, verified, and closed out

The SystemsBuilder Approach (Artifacts vs Records)

• Artifacts (you pay): build the structure once (testing program, exposure framework, supplier controls)
• Records (no added cost): unlimited batch test results and determinations generated under the same structure

Build once. Use forever. Scalable, predictable, cost-efficient.

How It Works (Three Phases)

Step 1 — Setup

• Product intake & scoping
• Risk identification by category
• Testing plan creation
• Documentation structure

Step 2 — Implementation

• Lab coordination (ISO/IEC 17025)
• Exposure & MADL calculations
• Compliance determination
• Warning-label decisions

Step 3 — Monitoring

• Monthly compliance oversight
• Batch & lot review
• Trend analysis
• Audit-ready reporting

Pricing (From the Brief)

• Compliance system setup: $1,500 (up to 3 finished products) + $150 each additional finished product
• Monthly monitoring: $500/month (up to 7 finished products) + $50/month per additional finished product
• Testing monitoring fees: $35 per testing monitoring event (per lot/batch)

Laboratory testing fees are not included; testing is conducted by independent ISO 17025 accredited laboratories billed directly by the laboratory.

What You Receive

• Batch compliance review reports: pass/fail determination, threshold comparison, reviewer sign-off
• Monthly summary reports: rolling snapshot of testing events, compliance status, and open action items
• Compliance monitoring logs: date-stamped log of every decision made
• Supplier tracking records: attestations, COAs, risk ratings, and corrective actions by supplier
• Audit-ready documentation: packaged for OAG inquiries, retailer audits, and legal counsel on short notice

Bottom Line — Your Risk Profile

• #1 enforcement target: food & supplements are the largest Prop 65 enforcement category
• Top litigation driver: heavy metals (lead, cadmium, mercury, arsenic) documented above thresholds in matcha testing (per brief)
• Whole-leaf exposure risk: matcha delivers 100% of the leaf’s metal load vs brewed tea extraction (~20–30%)
• Strict environment: California’s private-enforcement regime is the most aggressive in the U.S.