When baking with a forced fan oven, water vapour is best produced by placing a second baking tray or an old metal baking pan on the oven floor during pre-heating and heating it up. When placing your baking products into the oven, add 100-200 ml of water (depending on the size of the pan) into the baking pan or baking tray and quickly close the oven. This will create water vapour, which will settle on your baking products and give them the perfect look and crispiness you want. Never place a pan already filled with water into the oven during the preheating - the baking climate will become too humid and your baking product will not turn out nicely.