One variation is packaging which obscures the true color of the foods contained within, such as red mesh bags containing yellow oranges or grapefruit, which then appear to be a ripe orange or red. Regularly stirring minced meat on sale at a deli can also make the meat on the surface stay red, causing it to appear fresh, while it would quickly oxidize and brown, showing its true age, if left unstirred. Some sodas are also sold in colored bottles, when the actual product is clear.