A high - tech mixer , called a Brrr Machine , can make ice cream from scratch in 90 seconds . Machine is behind the success of Smitten , a San Francisco - based ice cream company . Machine : ` ` We use it because it 's super , super cold ''
A high-tech mixer , called a Brrr machine , can make ice cream from scratch in 90 seconds . Machine is behind the success of Smitten , a San Francisco-based ice cream shop . Creator : `` We use nitrogen because it 's super , super cold ''