Regardless of temperatures source
- Samples stand upright and organized
- Reproducible method
On ice
- Adapts from ambient (25˚C) to <4˚C in 60-90 seconds*
- Samples and labels stay dry
- Hours of ice cooling without direct ice contact
On dry ice
- Adapts from ambient (25˚C) to -78˚C in approximately 5-7 minutes*
- Eliminates ethanol from snap freezing
- Equal or better freezing rate as compared to direct immersion into dry ice or alcohol slurry
In liquid nitrogen
- Adapts from ambient (25˚C) to approximately -150˚C in approximately 12-14 minutes*
- Vapor barrier protects from ambient air
- No direct contact between samples and LN2
Heat sources
- Use with water baths, hot plates, incubators and other heat sources to keep samples warm
*Average cooling rate from room temperature