I took six random nICE mugs from my test freezer. I knew one right away was a substandard nICE mug- a big air bubble – but in the spirit of science, I filled it anyway.
What makes for a long life nICE mug?
minimal air bubbles. So here was the test:
- 6 nICE mugs.
- 76 degree temperature.
- direct sunlight.
How long did they last?

- 4:10 – the one with the big air bubble.
- 17:27
- 20:30
- 21:20
- 23:30
- 28:00 plus – still kicking!

#6 nICE mug was a double freeze. I will be drinking many more glasses made out of ice and making more nICE mugs with the double freeze method.