LN2 is very cheap and has a very good availability. Because of the low boiling temperature of -196C this fluid offers a large range of possibilities of extreme cooling.
Very practical for, fast cooling or deep cooling.
For practial, economical and safety reasons, vacuum insulation is the insulation technique of choice.
Do you want your proces to be at the highest level of accuracy, stability and relialability, Cryoworld is the company of choice.