How long does it take for a pear to oxidize?

A pear typically starts to oxidize and turn brown within a few minutes after being cut or bruised, due to the reaction of enzymes in the fruit with oxygen in the air. The browning process can become more pronounced over time, with noticeable color changes occurring within 10 to 15 minutes. To slow down oxidation, you can apply lemon juice or store the cut pear in an airtight container.