Does pasteurization count as cooking in prep of juices for after noon? If I were to have, lets say, a V8 after noon, and it was not cooked... but was pasteurized (heated at a high temp which is considered by the food industry to not be a temperature sufficient to cause it to actually cook... like just under the boiling point)... would this be in keeping with the 6th precept as a daily practice. Like during 7pm tea for example.

I am obviously running under the notion that raw pulp-free vegetable or fruit juice is 100% allowable which was told to me by a monk.
Heating juice is allowed; cooking it is not:

“I allow reheating.”
Mv.VI.17.6