Clean Source, The Official Journal of the Cleaning Lady and the Rocket Scientist

Volume XXII, Issue 6 - October 2025

Dr. Darren Williams explains how mixed candy relates to effective cleaning. For help in critical cleaning and surface prep, give us a call!

“I found this webinar to be very informative. There was a good balance between teaching and demonstration of the concepts being taught.”

Kennedy Beaulieu, Successfully Completed PQCW Aqueous Cleaning On-Demand Course

Feature Article

Chemistry of Mixing

Dr. Darren Williams, Sam Houston State University, Guest author

with Barbara Kanegsberg and Ed Kanegsberg, BFK Solutions

You cannot clean unless you can get the soil to mix into the cleaning solution. You can do this through brute force with rapidly moving spray, impingement, turbulence, or microjets from collapsing ultrasonic cavities. But you can also do this through temperature and chemistry.

As a Professor of Physical Chemistry and Leader of the Cleaning Research Group, it is my mission to pass on my knowledge of the “art and science” of critical cleaning. Don’t worry. I’ll keep it short and to-the-point so you can quickly understand the role chemistry plays in your cleaning process.

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KNOWLEDGE IS POWER

In Person, in Atlanta: ASTM Workshop - Residue on Medical Devices

Co-chairs Alpa Patel and Kaumudi Kulkarni, and Barb Kanegsberg urge you to attend this crucial one-day, in person workshop. ASTM “Workshop on Assessing Characteristics of Cleaning Agents Intended to Clean Medical Devices” on November 11, Atlanta GA. Unacceptable residue on medical devices can mean product failure, and failure is not an option for medical devices. Learn the latest developments in assure the reliability of cleaning processes. There are 14 excellent presentations covering cleaning agents, cleaning techniques, analytical approaches, and tools to determine when trouble might be brewing. Bring your ideas; participate! Be part of the future of reliable medical devices.

Access the technical program.

Barb Kanegsberg explains how she became known as The Cleaning Lady

At the recent Aluminum Anodizers Summit in Atlanta, Ed and Barb Kanegsberg participated in a free-ranging discussion about manufacturing and critical cleaning. It was supposed to be short. It wasn’t! Here’s one of a series of face-to-face ANO-Talk podcasts. The cast of characters includes (L to R): Tej Patel, the Rocket Scientist, Barb, George Oh, and Mark Spencer. Bill Sewell was behind the camera. In this 3-minute clip, Barb explains how she evolved from Freon Lady to Cleaning Lady.

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BFK Solutions. – independent consultants and practical educators

Our decades of experience help you make productive decisions about your cleaning processes, your manufacturing processes, your business. Contact Ed and Barbara Kanegsberg with concerns about cleaning, surface quality, regulatory issues - we’ll get back to you and discuss your cleaning issue, whether or not we do a project together! Suggest a topic – we may write about it!