Soaking dried soy beans, they start releasing this beautiful, creamy grassy smell the moment they hit the water.

Peeling and eating a bag of tangerines/clementines/mandarins, all the oils and juices leave this zesty haze in the air around you and on your skin and clothes and it smells incredible.

Chopping up a huge pile of ripe tomatos smells incredible too. So does fresh corriander.