Actual Orange Stain

[ShallowWater]

IDK if this is even the right subforum but here goes..

Searched and searched. Plenty about orange algae and rust but nothing about cleaning a stain on white plaster from an actual orange, as in the fruit.

 

[markayash]

Might try Vitamin C tablet or a chlorine tablet??
Who won the food fight

 

[JoyfulNoise]

Brushing and elevated chlorine (upper range value) for as long as it takes for the stain to lighten up. I would using concentrated products on the area as it could make the situation worse.