Compare the same material before comparing the price. For reishi extract, that means identifying the species and material format, selecting the marker you actually need and agreeing the specification for the order. A percentage and an extraction ratio answer different questions.
For example, an offer for 30% polysaccharides cannot be treated as equivalent to an offer for 30% beta-glucan. Nor does a 10:1 description establish either percentage. Keep these options on separate lines in your purchasing brief.
What does a beta-glucan specification tell a buyer?
It refers to the named component being measured, rather than every carbohydrate in the extract. Ask for the batch result against that specification. When comparing reports, have the laboratory confirm that the analytical procedure is appropriate for the sample.
Megazyme describes its yeast and mushroom assay as an indirect measurement of 1,3:1,6-beta-glucan and documents changes to the procedure over time. A report that merely says “glucan” leaves an important question unanswered. Keep the method details in your quality documents even when a short product listing does not display them.
How should I compare a ratio extract with a standardized extract?
Ask what the supplier’s stated ratio represents and obtain the material’s own specification. Do not calculate a marker percentage from the ratio or assume that a larger ratio means the material is better for your product.
If your purchasing target is a particular beta-glucan level, put that requirement in the order specification. If a ratio extract is suitable for your application, approve it on that basis and evaluate its performance in the actual formula.
Which documents should match the order?
Put the product identity and agreed specification beside the batch COA and any third-party report. Confirm that the lot or sample reference can be traced to the supplied material. Review the actual results, units and acceptance limits instead of relying on a document heading alone.
If laboratory accreditation is a purchasing requirement, check the relevant scope as well as the laboratory name. ILAC’s directory guidance explains how to find accreditation bodies and verify a laboratory’s accreditation status and scope.
How do I evaluate samples for a drink or capsule project?
Test each candidate in the intended product. For a drink mix, keep the amount, liquid, mixing method and standing time the same, then compare taste, dispersibility and settling. These are suggested application checks; they do not replace the agreed quality tests.
For a capsule project, ask the production team to evaluate the material in the intended filling process. Record the exact sample and trial formula so a later repeat test has a useful reference. Approval of one sample should lead to a written order specification, not just a note that it “looks good.”
What should I send for a reishi quotation?
Send the ingredient identity, the named marker and target specification or desired ratio, the quantity, the intended application and delivery destination. Add any required laboratory documents and the date you need the material.
If you are still deciding between formats, explain the product you want to make. We can discuss available options and samples before preparing the order-specific quotation. Use the linked reishi product page for the current displayed specification options.