Abstract: The present invention relates to fan cover (6), in particular a fan cover (6) for a cooking appliance (1), obtainable by a process characterised by the following steps, a) providing a fan cover (6) having an inner surface (7a), an outer surface (7b) and at least one opening (8) allowing a fluid to flow through, b) pretreating of at least the inner surface (7a) of the fan cover (6) for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating (12) by mechanical treatment, physical treatment or chemical treatment, in particular by sandblasting and/or laser treatment and/or an enamelling process to form a ground layer (13), c) applying the non-stick and/or non-wetting coating (12) to the inner surface (7a) of the fan cover (6) or the surface (14a) of the ground layer (13), wherein the non-stick and/or non-wetting coating (12) comprises at least one layer (17) that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane.

Abstract: A cavity (4) for a cooking appliance (2), in particular an oven cavity (4) for a domestic oven, comprising at least one cavity wall (8a, 8b, 8c, 8d) defining a cooking chamber (6) for cooking foodstuff and having an inner surface (10) facing towards the cooking chamber (6), a central opening for placing foodstuff into the cooking chamber (6), wherein the inner surface (10) is at least partially provided with a non-stick and/or non-wetting coating (16) comprising at least a first layer (18), wherein the first layer (18) is obtained by a sol-gel process from a first composition comprising a silica sol and a silane and/or wherein the cavity (4) further comprises a heat reflection shield system (26) having at least one heat reflection shield (28) to reduce the heat radiation produced by heating elements (30) being arranged within the cavity (4) against the non-stick and/or non-wetting coating (16).