I wanted to know if it is Halal to use Liquid Nitrogen for deserts etc. It is used at times to help make the food/desert more appealing too. If you could look into it and let me know InshaAllah it would be very much appreciated.
In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
We have contacted SANHA (South African National Halaal Authority) who confirmed that liquid nitrogen is permissible.
And Allah Ta’āla Knows Best
Student Darul Iftaa
Checked and Approved by,
Mufti Ebrahim Desai
 liquid nitrogen is used to make ice cream, flash-freeze herbs or freeze alcohol. Bartenders will swirl it around glasses to chill them, so that the supercooled glass will emanate a dramatic-looking vapor. (Liquid nitrogen creates a fog when exposed to air.) – http://healthland.time.com/2012/10/10/why-liquid-nitrogen-is-dangerous/