Why do Tomatoes turn red when ripe?
Ripe tomatoes are red due to a natural ageing process which transforms chlorophyll in the green tomatoes to the carotene lycopen which makes the tomatoes red. It is the same chemical that you find in watermelon, red grapefruits, blood oranges, guava and papaya and it is very good for you. If you have lots of green tomatoes you can either make green tomato chutney or put a ripe banana or other fruit close to your unripe tomatoes which emit a chemical that will help speed up the ripening process of your tomatoes.
