Tomatoes are a great example of this. Because they have to be shipped, commercial tomatoes are picked before they're ripe and then gassed with ethylene to make

Tomatoes are a great example of this. Because they have to be shipped, commercial tomatoes are picked before they're ripe and then gassed with ethylene to make them turn red. As a result, home-grown and locally grown tomatoes tend to taste noticeably better than typical store-bought ones since they're properly ripened.