>Use a plastic cup (reusable) which will hold 10 ounces of liquid
>nitrogen to pour the nitrogen into the can.
>
>pour 2 ounces in first and let smoke till smoke stops and then pour
>in the other 8 ounces.
Is the entire 10 ounces of liquid nitrogen poured into the can onto
each frame of brood? As I'm a cattle rancher with a liquid nitrogen
semen tank, I'm interested in trying your hygienic testing method.
Jim
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