What does the oven function "Bakers Function" mean?

Perfect for baking bread when an upward heat is required. When used together with the thermoseal, it is the ideal environment for producing crisp, golden brown bread. Pastry dishes with a delicate filling, such as quiche or custard, allow the pastry to cook on a lower shelf and then positioning higher in the oven to finish cooking the centre. Great for baking ‘blind’ or extra cooking of pastry bases. This function works best on level one. Base heat is still effective on the higher shelves; however, base heat will diminish the higher you go and the more shelves you use.