Dehydrated culture media & supplements

Keep containers tightly closed in a cool, dry place away from direct light. Dehydrated media are hygroscopic — absorbed moisture causes caking, darkening and loss of performance, and a caked or discoloured powder should not be used even if it is within its expiry date.

Unopened containers typically carry two to four years from manufacture, with the exact expiry printed on each label. Once opened, use within the period stated in the instructions for use — usually considerably shorter, and dependent on storage conditions.

Yes. Where an ISO method specifies a formulation, our media are manufactured to it and the relevant standard is listed on the product page — which is what an auditor or a customer specification will reference.

A CoA is available for every lot on request, covering growth promotion, selectivity and physical parameters. For accredited laboratories we can supply these routinely with each delivery rather than on request.

Verify each new lot with reference cultures traceable to a recognised collection before putting it into routine use. We supply quantitative reference standards for exactly this purpose — see the reference standards range.

Yes. Most formulations are available in bulk pack sizes beyond those listed. Send us your annual volume and we will confirm pricing and lead time.