Little Leaf, Big Flavour We've always known that little things can make a big difference. We're thinking, for example of the genome of the world's first pure lager yeast, which we propagated in our laboratories many years ago. Now we're putting another little detail under the microscope. Carlsberg's Hop Leaf. It's been a small part of our iconic logo for well over 100 years. It stands, of course, for the purity and quality of the natural ingredients we use to make the best beers you can possibly enjoy... Probably the best beer in the world.