--- title: Cleanroom and Pharmaceutical Blog | Blog (15) description: Blog | Gain insights into the latest happenings in the world of cleanroom technology and equipment. (15) --- [![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=7907&height=1706&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB")](https://www.cherwell-labs.co.uk/) [![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=7907&height=1706&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB")](https://www.cherwell-labs.co.uk/) [![50th Logo Cherwell logo final](https://www.cherwell-labs.co.uk/hubfs/50th%20Logo%20Cherwell%20logo%20final.svg "50th Logo Cherwell logo final")](https://www.cherwell-labs.co.uk/50-years-of-cherwell) Search # Our Blog ### AnalytiChem UK (formerly Cherwell Laboratories) is a leading supplier of prepared microbiological media and environmental monitoring instrumentation for the pharmaceutical and related industries. ### I want to read about Select Option *By Andrew Ramage* #### Why do we use Agar plates and how should you best handle them? Prepared agar plates are one of the most popular forms of [prepared culture media](https://www.cherwell-labs.co.uk/prepared-culture-media/). While agar is chiefly used in the laboratory, this polymer has an interesting history and is very useful outside of the scientific world too. But where does it come from, and why do we favour this substance over any... [Read More](https://www.cherwell-labs.co.uk/cherwell-labs-post/why-we-use-agar-plates-and-how-best-to-handle-them) ![GPT guide cta-min-1](https://www.cherwell-labs.co.uk/hs-fs/hubfs/GPT%20guide%20cta-min-1.png?width=300&height=196&name=GPT%20guide%20cta-min-1.png "GPT guide cta-min-1") #### Growth Promotion Testing: A Guide to Good Practices Get an in-depth understanding of key considerations and best practices when undertaking growth promotion testing (GPT). [![Download Guide](https://no-cache.hubspot.com/cta/default/2885977/5115d7a2-703f-4f11-b1f5-447e516585fc.png)](https://cta-redirect.hubspot.com/cta/redirect/2885977/5115d7a2-703f-4f11-b1f5-447e516585fc) [ *By Gill Power* #### The top 5 tips to producing agar plates like an expert ](https://www.cherwell-labs.co.uk/cherwell-labs-post/the-top-5-tips-to-producing-agar-plates-like-an-expert) [ *By Andrew Ramage* #### Pharmig 25th Annual Conference Review ](https://www.cherwell-labs.co.uk/cherwell-labs-post/pharmig-25th-annual-conference-review) [ *By Andrew Ramage* #### Environmental Monitoring Discussion Sessions at Pharmig ](https://www.cherwell-labs.co.uk/cherwell-labs-post/environmental-monitoring-discussions-pharmig) [ *By Gill Power* #### Prepared Microbiological Media: Pros and cons ](https://www.cherwell-labs.co.uk/cherwell-labs-post/prepared-microbiological-media-pros-and-cons) [ *By Andrew Ramage* #### How to Store Prepared Media Plates ](https://www.cherwell-labs.co.uk/cherwell-labs-post/how-to-store-prepared-media-plates) [ *By Andrew Ramage* #### Researching Disinfectant Neutralisers ](https://www.cherwell-labs.co.uk/cherwell-labs-post/researching-disinfectant-neutralisers) ### Sign Up for our Blog We promise that we won't SPAM you. #### What's next #### Recent news [![Specialist products for boosting microbial EM protocol reliability spotlighted by AnalytiChem UK at Pharmig 2025](https://www.cherwell-labs.co.uk/hs-fs/hubfs/Redipor%20TwistLock%20Contact%20Plates%20with%20GS1%20DataMatrix%20Codes.png?width=50&height=50&name=Redipor%20TwistLock%20Contact%20Plates%20with%20GS1%20DataMatrix%20Codes.png) **Specialist products for boosting microbial EM protocol reliability spotlighted by AnalytiChem UK at Pharmig 2025** 10 November 2025 ](https://www.cherwell-labs.co.uk/cherwell-labs-post/analytichem-uk-highlight-specialist-em-products-pharmig-2025-annual-conference) [![New AnalytiChem UK appointment strengthens customer focus and growth strategy](https://www.cherwell-labs.co.uk/hs-fs/hubfs/Tom%20Pickford%20AnalytiChem%20UK%20Business%20Development%20Manager%20Midlands.jpg?width=50&height=50&name=Tom%20Pickford%20AnalytiChem%20UK%20Business%20Development%20Manager%20Midlands.jpg) **New AnalytiChem UK appointment strengthens customer focus and growth strategy** 20 October 2025 ](https://www.cherwell-labs.co.uk/cherwell-labs-post/new-analytichem-uk-appointment-strengthens-customer-focus-and-growth-strategy) #### Subscribe Receive the latest articles as they are published. #### Contact us Registered Office 7 & 8 Launton Business Centre, Murdock Road, Bicester, OX26 4XB **Phone** Tel: +44 (0) 1869 355 500 **Email** [sales.uk@analytichem.com](mailto:sales.uk@analytichem.com)    ![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=2000&height=431&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB") ![BSI-ISO-9001-Certified-50px](https://www.cherwell-labs.co.uk/hs-fs/hubfs/BSI-ISO-9001-Certified-50px.png?width=130&height=77&name=BSI-ISO-9001-Certified-50px.png "BSI-ISO-9001-Certified-50px") AnalytiChem UK ©2025 (Formerly Cherwell) Reg. in England No: 01159518 VAT Reg. 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