Erythritol and stevia blends: matching samples to specifications and reports
When you receive an erythritol-stevia blend sample, the document package should describe that blend — not erythritol alone, and not the stevia raw material on its own. Match the sample identity to the specification first, then read each report for what it actually covers.
Published by Guilin Hengliyuan Biotech
This is a single-blend identity check. It is separate from comparing stevia against sucralose, and it does not assume any grade certificate or laboratory result in advance.
Separate the three document layers
Separate the ingredient information, supplied-blend specification and any relevant batch or test records. The first is the total blend ingredient declaration: the declared erythritol and steviol glycoside ingredients and any other components, with the agreed specification for the combined product. The second is the steviol raw material composition — the source or grade information for the stevia component. The third is the batch certificate of analysis or other scoped test report issued against the blend specification. These layers are not interchangeable. A raw stevia report does not verify the full blend. A specification sheet does not replace a batch record for the lot you received.
Read the identifiers before the numbers
On each document, check the product code, batch or lot number, production and test dates, test units, and the specification revision it references. The product code and specification reference should point to the same blend you are sampling. If the batch number on the certificate does not match the sample label, the report does not describe that sample. Where a value is missing, clarify whether it is not tested, not applicable to this blend, or below a reporting threshold. Do not read a blank as zero.
An example of a mismatched record
Suppose the sample is labelled as an erythritol-stevia blend, but the report you receive is named for erythritol alone and lists only erythritol parameters. That report cannot verify the supplied two-component blend, because it does not cover the steviol glycoside portion or the combined specification. Ask for the document that matches the blend product code and lot, and record the missing blend-level evidence separately from the component information already available. The same logic applies in reverse: a stevia extract report does not confirm the erythritol carrier, the blend ratio, or the finished blend identity.
Keep a version chain from quote to order
Track the quotation version, the specification version, the sample lot, and the order lot as a linked chain. Each stage should reference the previous one. If the specification changes after the sample was sent, the earlier trial results may no longer describe the current offer. A simple record format works: sample code, product code, specification revision, batch number, report number, report scope, and the date each document was received. This lets you see at a glance whether the trial sample, the quotation and the proposed order all point to the same blend.
What to do with the check result
If the documents match the sample and cover the full blend, you can move to application trials with a defined reference. If they do not match, request the correct batch report or a new sample that carries the right documents before treating a trial as an evaluation of the commercial item. Use the result to decide one of three actions: proceed with the trial, hold for corrected documents, or reject the sample identity. Record the decision against the version chain so the reason is visible later.
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Frequently asked questions
- Can a stevia raw material report support the full blend specification?
- No. A stevia raw material report covers the stevia component only. The blend also needs a declaration and specification for the combined erythritol-stevia product, plus a batch report issued against that blend specification.
- What if the certificate of analysis does not list a parameter I expected?
- Ask whether it is not tested, not applicable to this blend, or below the reporting threshold. Do not assume a missing value means zero. If the parameter matters for your project, request a scoped test or a specification revision that addresses it.
- How do I keep sample and order documents aligned?
- Use one version chain: quotation version, specification revision, sample lot, order lot, and report number. Confirm the product version and relevant batch at each stage. A sample batch and a later order batch may differ; retain the link to each applicable document.
What should buyers verify before a commercial discussion?
This is a buyer education Resource. It explains a natural sweetener, application, sourcing or validation question before a commercial discussion.
Product fit, label treatment, regulatory status and finished-product performance still need target-market and real-base checks.