How long does it take for an apple to rot with citrus on it?

The presence of citrus, which contains citric acid and other compounds, can slow down the rotting process of an Apple due to its antibacterial and antifungal properties. Generally, an untreated Apple may start to rot within a week under optimal conditions, while an Apple treated with citrus could last several days longer. However, the exact duration can vary based on factors like the Apple's freshness, storage conditions, and the amount of citrus applied.