A good advice from a Brit researcher to make lettuces taste nicer, is to try stoking them.
Steve Rothwell, a farmer and self-declared "leaf boffin", says salad can be made tastier if one shows it some affection.
"If they are growing in polytunnels or greenhouses, lettuce leaves respond well to stroking," the Daily Express quoted Rothwell, who got his PhD from Bath University, as saying.
He added: "Touching the plants stimulates the same enzyme as wind-rustling and produces leaves of superior colour and flavour.
"I'm completely passionate about creating the best possible alad."