How should incoming ingredients be controlled in GMP?

• A. Verifying by taste test.
• B. Checking only price and delivery date.
• C. Accepting all ingredients without verification to speed up production.
• D. Supplier qualification, certs, inspection on receipt, and quarantine until verified.

Answer: (D)

In GMP, controlling incoming ingredients starts with proper supplier management and verification of material quality before use. This means qualifying suppliers so they meet defined standards, obtaining and reviewing certificates of analysis or other certs to confirm the material meets specifications and safety requirements, inspecting materials when they arrive for identity, packaging integrity, quantity, and any signs of contamination or damage, and holding materials in quarantine until QA reviews and releases them. This chain of checks ensures only verified, traceable, and safe inputs enter production, reducing the risk of contamination, adulteration, or defects.

Taste tests are not reliable for safety or identity and can be dangerous, since many hazards aren’t detectable by taste. Relying only on price and delivery date ignores quality and safety. Accepting all ingredients without verification bypasses essential controls and is not GMP-compliant. The comprehensive approach of supplier qualification, certs, inspection on receipt, and quarantine until verification best aligns with GMP food safety goals.