Your frozen ready-to-bake biscuits might have Listeria in/on them

We don’t have a lot of rules on barfblog. In the about us section we’ve got our mantra:

opinions must be evidence-based – with references – reliable and relevant. The barfblog authors edit each other, often viciously.

We also have adopted the Wikipedia test of is it new and notable.

Listeria leading to a recall of frozen, ready-to-bake biscuits is new. And notable.

According to a company announcement, T. Marzetti is recalling a whole bunch of partially cooked. For the folks outside of the nerd world, this means they are raw, intended to be cooked before consumption. But as we’ve told industry and regulator folks repeatedly, people don’t do what you want them to do all the time, Including cooking/heating. 

If you’ve got Listeria in your product, and you’re not sure how people really prepare it, get it out of their hands.

Don and I have talked on Food Safety Talk a bunch about the limitations of Listeria testing, including enumeration vs. presence/absence. Looking for it and finding it tells you where you are regulatory. Because the relatively hight mean infectious dose of Lm in many described outbreaks (see this excellent paper from Régis Pouillot and colleagues discussing the Blue Bell-linked Lm outbreak and dose levels for more) just finding one Lm cell in a bag has a different public health risk from 10^8 cells per biscuit. Presence/absence doesn’t help with that.

As a precautionary measure, T. Marzetti Company is voluntarily recalling all “Best By” dates of the following products that were distributed in Alabama, Florida, Georgia, Indiana, Kentucky, Louisiana, North Carolina, Pennsylvania, South Carolina, Tennessee, Texas, and Virginia, because they may have the potential to be contaminated with Listeria monocytogenes. 

No illnesses have been reported in connection with the recalled items.

This announcement applies only to the specific frozen biscuit dough products listed [here] and does not include any other items produced by T. Marzetti Company or other items under the brands listed below. 

Wait for the blame-the-consumer wording. Wait for it…

Although these products are not ready-to-eat items and have baking instructions which, if followed, will reduce consumer risk, there remains some risk that the mishandling of this product prior to or without adequate baking may cause illness

And there it is.

Sure, baking will help. What about cross-contamination and growth? A recall notice isn’t a great place to get all negative with terms like ‘if followed’ and ‘mishandling.’

This entry was posted in Listeria by Ben Chapman. Bookmark the permalink.

About Ben Chapman

Dr. Ben Chapman is a professor and food safety extension specialist at North Carolina State University. As a teenager, a Saturday afternoon viewing of the classic cable movie, Outbreak, sparked his interest in pathogens and public health. With the goal of less foodborne illness, his group designs, implements, and evaluates food safety strategies, messages, and media from farm-to-fork. Through reality-based research, Chapman investigates behaviors and creates interventions aimed at amateur and professional food handlers, managers, and organizational decision-makers; the gate keepers of safe food. Ben co-hosts a biweekly podcast called Food Safety Talk and tries to further engage folks online through Instagram, Twitter, Facebook, YouTube and, maybe not surprisingly, Pinterest. Follow on Twitter @benjaminchapman.