When you picked it up at the shop, the head of lettuce looked crisp and fresh. But only moments later, its leaves seem to have lost all will to live, even in the fridge. But you don’t need to throw out lettuce at the first sight of wilted leaves, says Germany’s Ministry of Food and Agriculture. Instead, you can try resuscitating it by putting it in a water bath. Just fill a bowl with water, making sure it’s not too cold, and put in the leaves. After a short while, they will have soaked up the water and should be a little crunchier again. This trick also works with stalks of herbs. Just cut off…