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Subject: Re: [DCHAS-L] Liquid Nitrogen Ice Cream
Date: Friday, September 23, 2016 at 9:08:16 AM
Author: "Reinhardt, Peter" <peter.reinhardt**At_Symbol_Here**YALE.EDU> 		Next by Date:
Subject: Re: [DCHAS-L] Liquid Nitrogen Ice Cream
Date: Fri, 23 Sep 2016 10:40:31 -0400
Author: Regina Cody

From: DAVID Katz <DAKATZ45**At_Symbol_Here**MSN.COM>
Subject: Re: [DCHAS-L] Liquid Nitrogen Ice Cream
Date: Fri, 23 Sep 2016 14:04:07 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CO2PR11MB008774BA4214AAEEBD23189AC5C80**At_Symbol_Here**CO2PR11MB0087.namprd11.prod.outlook.com
In-Reply-To


Hi Melissa,
 
I have made liquid nitrogen ice cream for years with no problems. Here is the link to my procedure http://www.chymist.com/Liquid%20N2%20ice%20cream.pdf
 
Remember, you are working with a cryogenic fluid.  Safety procedures must be followed as well a food safety procedures..
 
At the ACS meeting in Boston, the RSC hired the Wiches of Boston to make liquid nitrogen ice cream at their booth in the exposition. They used my recipe.  http://www.chymist.com/Liquid%20N2%20ice%20cream.pdf
 
Best regards,
 
David 
_________________________________________________________________________
 
  David A. Katz             
  Chemist, Educator, Expert Demonstrator, Science Communicator, and  Consultant
  Programs and workshops for teachers, schools, museums, and the public
  133 N. Desert Stream Dr. * Tucson, AZ 85745-2277 *  USA
  voice/fax: (520) 624-2207 * email: dakatz45**At_Symbol_Here**msn.com
           Visit my web site:  http://www.chymist.com
_________________________________________________________________________
----- Original Message -----
From: 00000313ede34dce-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Sent: Thursday, September 22, 2016 3:21 PM
Subject: Re: [DCHAS-L] Liquid Nitrogen Ice Cream

Melissa - have used this well received demo many times. Hazard; other than shattering of improper materials; is splashing small amounts of LN2. Can easily be done safely. Email for specifics. 

With regards,
Mike

Michael N. Cooper MS, MPH, CIH, NRRPT
Certified Industrial Hygienist
Radiation Protection Technologist
Principal Scientist 
mcooperconsulting

Instructor, University of California, Davis mncooper**At_Symbol_Here**ucdavis.edu
(408) 313-2127


On Sep 22, 2016, at 14:30, Melissa Anderson <mwanderson08**At_Symbol_Here**GMAIL.COM> wrote:

I have a colleague who's interested in making liquid nitrogen ice cream as an outreach activity and he asked me about safety/risk implications. Does anyone have any experience with this from a risk assessment perspective?

Thanks!
Melissa Anderson
Chemistry Instructor
Pasadena City College
--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org
--- This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety. For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org

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