Blue lotus certificate of analysis: how to read one

What a certificate of analysis tells you

A certificate of analysis, or COA, is a report from a testing laboratory about one specific lot. For wholesale blue lotus it is the strongest evidence that the flower is what the seller says it is and that it meets reasonable quality limits.

What it should show

• Identity. Confirmation the lot is Nymphaea caerulea.
• Moisture. A measured value. A target below about 12% protects against mould.
• Microbes. Counts for yeast, mould and common bacteria.
• Heavy metals. Typically lead, arsenic, cadmium and mercury.
• Pesticides. Residue screening results.

How to read it

Check the lot number first. It should match the lot on your quote and your bag. Then check the date, the name of the laboratory and the method used for each test. Look for results with numbers and limits, not just a pass mark.

Red flags

• No lot number, or one that does not match your bag.
• No laboratory name or contact details.
• A certificate that is years old or covers a different product.
• A seller who refuses to share one before you pay.

Asking us

We provide a certificate of analysis on request and include lot photos with every quote. Our quality page describes our inspection, and the supplier checklist shows how to compare sources. For distributors, see distributor supply.