Actually, I just came across a warning from the FDA not to do that at all. Leftover LN in the food products has apparently caused injury.https://www.fda.gov/Food/RecallsOutbreaksEmergencies/SafetyAlertsAdvisories/ucm618058.htm?utm_campaign=CFSANCU_Nitro_08302018&utm_medium=email&utm_source=EloquaThe warning is phrased like a recall: "FDA Advises Consumers to Avoid Eating, Drinking, or Handling Food Products Prepared with Liquid Nitrogen at the Point of Sale." I think "in the kitchen of the restaurant' qualifies as "at the point of sale" to the FDA in this case; they're distinguishing it from situations where processed foods are flash frozen in an LN spray tunnel, which occurs days to weeks before consumption.Not something I ever thought about when eating LN ice cream, but it does make sense that one could be injured. If the end product is hazardous, there is little point in manufacturing it safely, I would think.Regards,Dan--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchasOn Aug 30, 2018, at 2:16 PM, Jyllian Kemsley <jyllian.kemsley**At_Symbol_Here**GMAIL.COM> wrote:--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchasHi all,A colleague, Kerri Jansen, is working on a video about using liquid nitrogen to make ice cream in a restaurant-type setting. Do any of you have experience with safety standards for this, or can you point us to a possible source? We want to make sure we do this well.Some of the questions Kerri is looking to answer are:Would safety guidelines for liquid nitrogen use in a restaurant differ from the standards set for lab use? If so, what differences would be taken into consideration?What is the proper way to handle liquid nitrogen in a restaurant setting, from a safety standpoint? (Said differently, what can consumers look for to know the liquid nitrogen used to prepare their food is being handled safely?)You can reply to Kerri directly at k_jansen**At_Symbol_Here**acs.org.Thank you!
JyllianJyllian Kemsley, Ph.D.Executive Editor, policy and safetyMobile: (+1) 925-519-6681Skype: jyllian.kemsleyTwitter: **At_Symbol_Here**jkemsley
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