| Material Composition | Ceramic or glass with documented raw-material specifications; recycled-content claims must state the percentage and calculation method. | Material specification sheet, supplier declaration, recycled-content calculation, and independent laboratory report where applicable. | Composition is traceable to batch or production lot and matches the product technical file. | Medium Unverified “eco” claims may create greenwashing exposure. |
| Food-Contact Safety | Finished mugs should be tested for migration of relevant substances, including heavy metals from glaze, decoration, or pigment systems. | Recent migration test report from an ISO/IEC 17025-accredited laboratory, product recipe, and production sample. | Testing covers the destination market and the exact mug, glaze, print, and coating combination. | High Decorative coatings can change compliance results. |
| Management Systems | ISO 9001 for quality management; ISO 14001 is preferred for environmental management and operational controls. | Valid certificates showing legal entity, site address, scope, certification body, and expiry date. | Certificate scope includes the actual mug manufacturing site, not only a trading or head-office location. | Medium Certificates may not cover subcontracted processes. |
| Environmental Claims | Claims such as recycled, recyclable, biodegradable, or carbon-reduced must be specific, measurable, and supported by evidence. | Life-cycle assessment or calculation method, recycled-content evidence, packaging specification, and claim review record. | Marketing language identifies the product component, percentage, boundary, and applicable disposal conditions. | High Environmental claims are regulated differently across markets. |
| Production Capacity | Confirmed monthly capacity should be at least 1.5 times the planned average monthly demand; peak capacity should be documented separately. | Capacity statement, equipment list, production schedule, staffing plan, and 12-month order history with sensitive details removed. | Capacity is calculated for the requested shape, decoration, packaging, and quality level. | Medium Shared kilns and subcontracting may reduce available capacity. |
| Minimum Order Quantity | Typical project screening range: 500–3,000 pieces per design, depending on mold, color, print, and packaging requirements. | Written quotation showing MOQ by SKU, decoration method, color, carton configuration, and tooling requirements. | MOQ is commercially viable without forcing unnecessary inventory or mixed-compliance production. | Medium Low MOQ may increase unit cost and packaging waste. |
| Lead Time and Continuity | Standard production planning commonly requires 30–60 days after artwork, sample, and purchase-order approval; custom molds may add several weeks. | Stage-by-stage timeline, production calendar, tooling plan, backup-process plan, and shipment history. | Supplier identifies raw-material, kiln, decoration, packaging, and logistics contingencies. | Medium Seasonal demand and port disruption can affect delivery. |
| EU Compliance | Food-contact materials must comply with applicable EU framework requirements, including Regulation (EC) No 1935/2004; chemical restrictions such as REACH may also apply. | Declaration of compliance, migration testing, substance declarations, traceability records, and packaging compliance documents. | Documents cover the finished product and all food-contact components, including glaze, ink, lid, and seal where present. | High Requirements vary by material, use, and member-state enforcement. |
| United States Compliance | Materials and colorants intended for food contact must be suitable for the intended use under applicable U.S. food-contact requirements. | Supplier compliance statement, applicable regulatory references, migration or extraction testing, and formulation records. | Evidence reflects actual temperature, contact time, food type, decoration, and intended-use conditions. | High Food-contact status cannot be inferred from general product safety certificates. |
| Packaging and Circularity | Use right-sized protective packaging, minimize mixed materials, and provide material identification for major packaging components. | Packaging bill of materials, carton dimensions, recycled-content statement, drop-test results, and disposal guidance. | Packaging protects the mug during transport while avoiding unsupported recyclability claims. | Medium Over-packaging raises cost, volume, and environmental impact. |
| Traceability and Auditability | Maintain batch-level traceability from raw materials through decoration, inspection, packing, and shipment. | Lot-code procedure, inspection records, nonconformance log, corrective-action reports, and supplier audit access. | A retained sample and complete production record can be linked to each shipment or purchase order. | High Weak traceability increases recall and investigation costs. |