Also how they're ripened (I believe you can change the colour of the tomato skin without allowing it to ripen), and that our sense of taste is strongly linked t

Also how they're ripened (I believe you can change the colour of the tomato skin without allowing it to ripen), and that our sense of taste is strongly linked to our sense of smell - once you've coated a lemon in wax, it stops smelling like a lemon.