If you don't want to buy linseed oil, you can do the following. What you need is the juice of a lemon, oil and salt. Divide the juice of the lemon over The.Board and sprinkle with a tablespoon of salt. Once you've done this, you should gently rub it in with a tea towel or kitchen paper. Then rinse The.Board with warm water and let it dry completely. As soon as The.Board is dry, rub it in with two tablespoons of oil and let it soak in for 20 minutes. Repeat the greasing with the oil about 3-4 times.