That one rings true: https://www.homesciencetools.com/vitamin-c-test-experiment-kit https://www.homesciencetools.com/vitamin-c-test-experiment-k... Though the

That one rings true: https://www.homesciencetools.com/vitamin-c-test-experiment-kit https://www.homesciencetools.com/vitamin-c-test-experiment-k... Though the time frame is probably greater than casually sipping