So as we know vitamin C is a water soluble vitamin, there for it has the ability to be oxidized.
I have an acquaintance who does vitamin C research and she performed a little experiment.
She bought orange juice from the supermarket (half gallon) and over a weeks period she would pour some juice into a glass each day.
The vitamin C content would then be examined on a daily basis at the time of usage.
She noticed that every time she opened the orange juice and poured it into a glass the vitamin C content would diminish. By the end of the week there was little to no vitamin C left in the remaining orange juice.
I just thought this was interesting and wanted to share this info. So if you’re consuming orange juice for the vitamins, it’s better to purchase a juice pack and consume the entire thing.