| Raw Material Identity | The product should be made from pomegranate peel or skin and should clearly state the botanical source and plant part used. | Product specification, botanical name, plant-part declaration, raw-material description, and a representative product sample. | Pass Exact plant part is stated and matches the intended application. Review The supplier uses broad wording such as “pomegranate powder” without identifying the plant part. |
| Processing Method | The supplier should explain washing, drying, milling, and sieving steps. The process should minimize contamination and excessive heat exposure. | Process flow chart, drying method, temperature range, foreign-material controls, and allergen or cross-contact statement. | Pass Process is documented and traceable. Review The supplier cannot explain drying conditions or milling controls. |
| Moisture Content | A commercial dried botanical powder is commonly screened against a moisture limit of approximately 8% or lower, subject to the buyer’s specification. | Recent certificate of analysis showing moisture results for the same product grade and batch. | Prefer consistent results at or below the agreed limit. High or highly variable moisture may increase caking, spoilage, and storage risk. |
| Particle Size | Common commercial options include 40–60 mesh or 60–80 mesh. The correct size depends on extraction, food, cosmetic, or supplement use. | Sieve analysis, mesh specification, retained sample, and confirmation of whether the result is nominal or guaranteed. | Select a supplier that can consistently meet the required mesh range and can provide a tighter screen when necessary. |
| Microbiological Quality | Testing should normally cover total aerobic microbial count, yeast and mold, and relevant pathogens. Limits must follow the destination market and intended use. | Batch-specific microbiological certificate of analysis from a competent laboratory, including test methods and units. | Pass Results comply with the buyer’s regulatory and application requirements. Reject Missing pathogen data or unexplained out-of-specification results. |
| Heavy Metals and Contaminants | The product should be assessed for relevant heavy metals, pesticide residues, aflatoxins, and foreign matter when required by the market or application. | Recent laboratory reports, test methods, detection limits, and confirmation that the tested batch matches the offered material. | Approve only when results meet the applicable destination-country limits and the supplier has a documented contaminant-control program. |
| Color, Odor, and Appearance | A natural peel powder generally ranges from reddish-brown to brown, with a characteristic plant odor and no visible mold, insects, or unusual foreign material. | Retained sample, product photographs, sensory specification, and comparison against the approved reference sample. | Require approval of a pre-production or shipment sample before placing a large order. |
| Traceability | Each lot should be linked to production records, raw-material information, processing dates, packaging dates, and shipment documents. | Lot-number format, traceability procedure, production record sample, recall procedure, and certificate-to-lot matching process. | Pass The supplier can trace a finished lot back to its processing records. Review Documentation is only available at shipment level. |
| Packaging and Storage | Bulk botanical powders are commonly packed in food-grade inner bags with protective outer bags or cartons. Packaging should protect against moisture, light, and contamination. | Packaging specification, net-weight options, pallet details, storage temperature and humidity guidance, and shelf-life statement. | Confirm that packaging is suitable for the transport route and that the stated shelf life is supported by stability or historical quality data. |
| Minimum Order Quantity | Bulk order quantities vary widely by processor and packaging format. Request quotations for at least three volume tiers, such as 25 kg, 100 kg, and 500 kg. | Written quotation showing price breaks, packaging costs, sample charges, payment terms, and validity period. | Compare the delivered cost per kilogram rather than the product price alone. |
| Lead Time and Supply Capacity | A qualified supplier should provide a realistic production and dispatch schedule and explain whether availability is seasonal or maintained through inventory. | Production lead time, current stock status, monthly capacity range, seasonal supply calendar, and business-continuity plan. | Prefer suppliers that can support repeat orders without changing the specification or source without prior approval. |
| Regulatory Documentation | Documentation should match the intended use, such as food, cosmetic, industrial, or dietary-supplement applications. | Product specification, certificate of analysis, safety data sheet where applicable, declaration of conformity, and export documents. | Do not approve a supplier solely on price if mandatory documentation is incomplete or inconsistent. |
| Sample-to-Batch Consistency | The bulk shipment should match the approved sample in color, odor, particle size, moisture, and microbiological profile within agreed tolerances. | Pre-shipment sample, batch-specific certificate of analysis, retained sample policy, and written deviation procedure. | Use a written specification and acceptance criteria before signing the purchase order. |
| Supplier Communication | Reliable suppliers answer technical questions clearly, issue documents on time, and disclose changes to raw materials, processing, or packaging. | Response history, named quality contact, complaint-handling procedure, corrective-action process, and change-notification policy. | Give preference to suppliers that provide complete answers and maintain consistent documentation throughout the qualification process. |