Lab-Grade Dewar Flasks, Pope Scientific 8645

Well designed. Likely to last a long time. Highly recommended for liquid nitrogen activities. Note that this dewar is not for transport in a car and is not for long-term storage. You would dispense the liquid nitrogen from a big (storage and transport) dewar into this dewar, and then you would use this for your actual activities -- making ice cream or whatever.

Well designed. Great for moving liquid nitrogen from room to room or holding it outside of the tank for a period of time. The foam cap slows the evaporation but will not prevent the liquid nitrogen from coming out if the container is tipped.

This is great flask for indoor use when you need to move liquid nitrogen from one room to another. It is not meant for transferring liquid nitrogen in a vehicle.