It's not accurate to say that oxidation of food occurs at a specific temperature. Oxidation is a chemical process that happens all the time, regardless of temperature, although it speeds up at higher temperatures.

Here's a breakdown of how temperature impacts food oxidation:

* Oxidation always happens: Oxygen in the air reacts with the molecules in food, causing it to change color, flavor, and texture. This is a natural process that happens at all temperatures, even in the refrigerator.

* Higher temperatures accelerate oxidation: Heat provides the energy for the chemical reactions involved in oxidation to happen faster. That's why food spoils more quickly at room temperature than in the refrigerator.

* Specific temperature thresholds: There isn't a single temperature where oxidation suddenly begins. Different foods oxidize at different rates, and factors like moisture content, pH, and the presence of antioxidants play a role.

Here are some examples of how oxidation affects food at different temperatures:

* Room temperature: Cut fruit browns quickly due to oxidation. Fatty foods like nuts and oils go rancid faster.

* Refrigeration: Oxidation happens more slowly in the refrigerator, but it doesn't stop completely.

* Freezing: Freezing slows down oxidation significantly because the low temperature reduces the rate of chemical reactions.

To summarize, oxidation is a continuous process that happens at all temperatures. Higher temperatures simply speed up the process.