What is The Rotten Apple?

The Rotten Apple is your answer to inbox overload.

The Rotten Apple is for food professionals, policy-makers and purveyors who want the big picture on food safety, food authenticity and sustainable supply chains.

The Rotten Apple is about 🍏 food safety 🍏 food fraud 🍏 sustainable supply chains 🍏

Hi, I’m Karen!

I do the hard work for you. Every week I scan hundreds of news articles, blog posts, forums, newsletters and Twitter feeds for relevant food and ag news. The Rotten Apple is me sharing the items that I think you will find the most interesting and useful.

Topics are expertly curated so they are practical and relevant.

You get short, sharp reads, with links to more information on each item if you want to go deeper plus the occasional deep dive to stimulate your knowledge centres.

"Your newsletter is insightful, well researched and I like the humorous touch. What pushed me over the edge from unpaid to paid was your article on biofilms, which was a fantastic compilation of the state of knowledge. Thank you" Stephen, 18 July 2023

Why subscribe?

Subscribe for:

  • Emerging issues in food safety and food fraud: new hazards, new trends, updates to standards;

  • The current state of food safety systems (for example, has the GFSI lost its way?)

  • Case reports, how-tos, and personal stories from food supply chains;

  • Food fraud incidents from around the globe, from the last week;

  • Horizon scanning news for food ingredients and commodities.

You won’t find:

x Press releases from food companies about their latest ‘initiatives’ or products.

x Advertorials about equipment, systems or services for food production.

x Self promotion or endorsements. While I do offer food fraud products, training and consultancy services, I don’t promote them in this newsletter.

Top Posts

Free and Paid Subscriptions

Free subscribers get interesting, easy-to-read articles (food safety, food fraud, food supply chains) straight to your inbox every Monday.

Paying subscribers get access to additional, exclusive content:

✅ exclusive monthly supplements (for example, The Five Whys for Root Cause Analysis + Template);

✅ recordings of live training events;

✅ weekly food fraud incident reports and horizon scanning for food fraud;

✅ an index of past topics and articles; and

✅ an e-book of past issues… download it, print it, enjoy it offline.

See an example of a paid newsletter here

As a paying subscriber you will be supporting me and my efforts to bring you ad-free, independent reporting. Subscriptions cost just $10 per month and you can cancel any time.

Subscriptions are tax-deductible and expense-account-friendly. Business-ready invoices and receipts are provided. Learn more about paid subscriptions here.

Free or paid, subscribe here:

Connect with Karen

Find me on…

Email me at…

  • Karen @ authenticfood .co [remove the spaces from this address first]

P.S. Want to know why I’m doing this? Click here to read why.


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Food Safety 🍏 Food Fraud 🍏 Supply Chains 🍏 Try it, you'll like it 🍏


I explain food safety and food fraud in a no-nonsense, practical way to the global food community. Check out my expertise on LinkedIn (I'm easy to find). And follow me on Twitter @karenconstable4.