You can get dry ice at your local Costco. Perhaps dry ice is not cold enough for your experiments?

Frank

Sent from my iPad

On 5 Oct, 2016, at 7:11 am, Itay Seith <heyitay**At_Symbol_Here**GMAIL.COM> wrote:

Ralph,

If you are looking for a means to demonstrate the negative effects of liquid nitrogen, purposely pour some upon a pound cake and be sure to use a thermometer to demonstrate the cold.

As a teacher at Keene State, I'd imagine it's much easier for you to get vs the public, but restaurant Depot has this item in a cannister to help with manufacture of chocolate mouse.

Itay Seith

On Oct 3, 2016 10:47 AM, "Stuart, Ralph" <Ralph.Stuart**At_Symbol_Here**keene.edu> wrote:

In follow up to our discussion a week or two ago about making ice cream with liquid nitrogen, I wonder if anyone on the list has put together a briefing sheet on best safety practices associated with this activity? (Yes, we'll be hosting such an event next week.)

Google helped me find some cringe-worthy videos of this activity and a couple of culinary magazine articles that provide a quick glance at the hazards associated with liquid nitrogen in the kitchen, but I haven't found a summary of safety aspects of this innovation. Happily, I have David Katz's procedure for lN2 ice cream to start with, but am looking for something more eye-catching to remind the audience that doing this at home isn't quite as simple as it looks in the hands of an experienced chemist.

Thanks for any suggestions about this.

- Ralph

Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College

ralph.stuart**At_Symbol_Here**keene.edu

---
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

--- 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