At What Temp Does Vitamin C Break Down?

This will depend on the temperature and the duration of the treatment. Vitamin C begins to denature at temperatures as low as 86 °F, according to a study in the International Journal of Scientific and Technology Research. The negative effects of heat increase significantly at 140 and even more at 170 °F.

Can vitamin C be destroyed by heat?

Vitamin C can be destroyed by heat and light. High-heat cooking temperatures or prolonged cook times can break down the vitamin. Because it is water-soluble, the vitamin can also seep into cooking liquid and be lost if the liquids are not eaten.

At what temperature does vitamin C denature in Celsius?

Reports published by the U.S. National Institute of Health indicate a food's vitamin C oxidizes and denatures at 70° C (or 158° F).