Filtering by Tag: Peanut butter

Food Safety Talk 29: In a tin can insulated with towels

Added on by Don Schaffner.

The guys jumped right into the deep end and discussed the risks, or perceived risks, associated with salad bars and whether irrigation water or someone sneezing over the salad would pose a bigger risk. The guys also chatted about Don’s recent apparent food poisoning, new listeners to the podcast and Ben’s musical taste. Ben also admitted to being hooked on The Wire.

The discussion then turned to a barfblog article about research articles by Petran et al. on restaurant inspection, entitled “Health department inspection criteria more likely to be associated with outbreak restaurants in Minnesota” and “Using a theoretical predictive tool for the analysis of recent health department inspections at outbreak restaurants and relation of this information to foodborne illness likelihood”. While restaurant inspection per se may not improve public health, Petran et al. investigated whether the answers to specific inspection questions would help predict whether a given restaurant is at increased risk of a foodborne illness outbreak.  The guys specifically discussed Table 4 of the first article, available here, which looked at the risk of norovirus, Salmonella or Clostridium perfringens outbreaks as related to different inspection questions.

Ben and Don then turned their attention to the recent Multistate Outbreak of Salmonella Bredeney Infections Linked to Peanut Butter Manufactured By Sunland. This isn’t the first time that Salmonella and peanut butter caused trouble – previous examples include this this 2006/7 outbreak and this 2008/9 outbreak.  As a result of the Sunland Outbreak, IAFP will be running a webinar on Best Practices in Peanut Butter and Peanut Production. Don noted the challenge wasn’t a lack of knowledge of how to control Salmonella in peanuts, but getting the information to those who most need it.  Ben was particularly critical of companies who have testing schemes on which their food safety programs are built, but which continue to ship product despite detecting 9 different Salmonella strains. Ben also noted that denying test results is counterproductive when the epidemiological evidence is pointing at your product. A better communications approach was discussed in Food Safety Talk 25 in relation to the Salmonella outbreak linked with cantaloupe.

Don shared about his recent food poisoning in Hawaii, and noted that while foodborne outbreak investigations in Hawaii might be good, publicizing anything related to outbreaks wasn’t good for tourism. This reminded Ben of the heightened requirements for vendors at farmers markets in Hawaii. Don mentioned his dinner with Linda Harris, and her comment that the all of Hawaii fell under the Tester Amendment of the FSMA Act.

This brought to guys to an article that Don had recently reviewed, which had made him query who does the work of cooperative extension in Canada. Ben provided a bit of history and his understanding of the current situation. Ben believed that it fell mainly to the regulatory authorities, for example Wellington-Dufferin-Guelph Public Health. Don was worried that this was likely to result in important research findings not being developed into useful extension programs, especially with the influx of Canadian food safety extension specialists invading the US.

In the After Dark, Don talked a bit more about his trip to Hawaii and how he got so angry on his first night. The guys talked about their Thanksgiving plans and they finished where they started: Chick-fil-A.

Food Safety Talk 29: In a tin can insulated with towels

Food Safety Talk 26: We’re out of the lag phase!

Added on by Don Schaffner.

Ben and Don started the podcast with a discussion about Lego. Ben has finally started his homework – watching Episode 1 from Season 1 of The Wire. This evolved into a discussion of music, including Tom Waits, Neil and Pegi Young’s Annual Bridge School Benefit Concert and the Kronos Quartet. Then Don had little Skype hiccup, which turned out to be pibcak.

The guys then turned their attention to food safety and Don started it off with a mention of Back to Work, Episode 85: "Schrödinger's Soap Holder", which focused on safely navigating a public restroom with or without hot water, soap and paper towels. After a short sports excursion, including a walk down “No-Hockey Lane” (which apparently had Michele Catalano fired up) the guys found their unique spiritual connection… through peanut butter, but not jelly.  Andreas suggested Aussie Rules in the event there is no hockey.

The discussion then focused on the current peanut butter related illness outbreak and related recalls. Ben wondered allowed how a regulatory agency might determine the period of production that is to be recalled. Don guessed that it was related to the company being able to document the last comprehensive cleanup. A potential difficulty for this relates to the use of rework, as seen with the ever-expanding Hudson beef recall. While knowing how recall decisions are made may not be of interest to everyone, but Ben noted that this information would be useful to other companies who face recall decisions in the future.

Ben then asked about the magnitude of the risk of Salmonella in peanut butter as he hadn’t seen any published risk assessment. Don guessed that it was low (relative to many types of produce) because the Microbiological Data Program 2009 data summary didn’t show any Salmonella detections in 1542 peanut butter samples. Don then raised the issue that the MDP recalls were never or rarely linked to outbreaks. He was particularly interested in this because of an upcoming talk he was preparing, in which he combined prevalence estimates from the MDP 2009 data, under-reporting estimates from the Scallan et al article, and a rough dose-response estimate. Don’s reasoning indicates that it’s not surprising that the MDP program would result in detections (and hence recalls) that aren’t linked to outbreaks.

Using the example of cilantro, which had many detections of Salmonella reported in the 2009 MDP data, Ben noted that he would really like to know more about where and how the hazard is introduced into the product. Don then suggested that a better way of reporting the MDP results would be to report the positive rate, rather than just the number of positives, as clearly the denominator is important.

Ben then mentioned the current large norovirus outbreak in Germany, where more than 8400 children have shown symptoms. Ben hypothesized that it might be related to water in a fresh produce washing and packing plant.  Turns out he might just be right since frozen strawberries have now been implicated. Ben wasn’t sure whether a surveillance program like the MDP would ever detect viruses in fresh produce, and while he accepted the utility of the MDP he was also sure that it could be improved.

Ben then discussed his recent experience of visiting Jeanne Gleeson, Barb Chamberlain and their army of programmers, who produced Ninja Kitchen. He was talking to them about producing stop motion animations to illustrate how and where hazards are introduced into the fresh produce supply chain – from farm to the consumer. Ben is keen on using these for educational presentations to producers as well as consumers shopping at farmers markets. This reminded Don of the norovirus cross-contamination modeling work his student Di Li is working on, and also the excellent videos of Jim Mann from Hand washing for Life.

Then Don offered to send a free FoodSafetyTalk.com fridge magnet/thermometer to listeners who contact him via email or Twitter. He’s also using them for distribution at MaxFunCon East with the aim of increasing listener numbers, which has just exited the equivalent of the bacterial lag phase.

In the After Dark Ben announced that he was going to watch some more of The Wire and then proceeded to assign Don some homework – to watch Canadian TV Series "The Newsroom".

Food Safety Talk 26: We're Out Of The Lag Phase!