The results support my hypothesis that freshly squeezed orange juice would have the
most amount of vitamin C because the fruit is picked fresh and it is not stored, preserved or
exposed to oxygen. The ‘boiled McCain juice’ might have had more vitamin C because it was
boiled for two minutes. The water evaporated and maybe the juice became more concentrated.
‘McCain Old South from frozen concentrate’ ranked third in both experiments probably because
freezing preserves the vitamin C and possibly early maturing oranges were used. For various
reasons as I reviewed in the background information, the other juices ranked lower in vitamin C
content than these top three. C-plus and Kool-aid, which are orange flavoured obviously had no
vitamin C in them. These results were as expected.