When the sun is shining, most of us like to enjoy an ice-cream.
A parlour in Cardiff is making what's believed to be Wales' first ice-cream made using liquid nitrogen.
Mike Griffiths went along to find out how it all works.
Carly Karran gave up her career as a laboratory scientist to open the Science Cream shop, and employs fellow scientists to help prepare the ice cream.
The team wears safety gear at all times. There's also a screen to shield customers from the liquid nitrogen at the counter.
Warm weather boosted sales of ice cream and other frozen desserts across the UK to £1.1bn in the past year.