
About this episode
Welcome to the very first Micro Minutes, a new quick-hit series from Let's Talk Micro designed for students, techs, and anyone who wants fast, practical microbiology insights in under 10 minutes.
In this episode, we tackle a common misconception that microbiologists can make at the bench when interpreting a single plate: MacConkey agar.
Many assume:
"If it doesn't grow on MacConkey, it's not a gram-negative rod."
"If it does grow on MacConkey, it must be a gram-negative rod."
Both are wrong — and today we break down why.
Stay connected with Let's Talk Micro:
-
Website: letstalkmicro.com
-
Questions or feedback? Email me at [email protected]
-
Interested in being a guest on Let's Talk Micro? Fill out the form here: https://forms.gle/V2fT3asjfyusmqyi8
Support the podcast:
Get every episode summarized
Each time Let's Talk Micro publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
Hosts & guests
No transcript yet
This episode has not been transcribed. Request it and it moves to the front of the queue.
More episodes
More from Let's Talk Micro

242: Microbiology & Infection Prevention: Partners in Crime
Let's Talk Micro

241: What Can Whole Genome Sequencing Realistically Tell Us About Resistance?
Let's Talk Micro

240: CLSI M100 2026: Actualizaciones
Let's Talk Micro

239: Inside ASM Microbe 2026
Let's Talk Micro