Trays are usually manufactured from 1.6mm aluminium. May also be made from 2.0mm aluminium, 1.6mm or 2.00mm marine grade aluminium, 1.2mm aluminised steel or mild steel (black steel) if sufficient quantity. Pressed trays sides are angled to allow for close stacking saving storage space in the bakery.
These trays are usually supplied uncoated, however, they can be supplied with either clear silicone or Black PTFE (this coating requires aluminium trays to be 2mm thick). RTV silicone Rubber (Orange).
Silicone coated trays do not require ‘burning in’. Doing so may cause irreparable damage to coating resulting in poor release properties. PTFE coated trays should be oiled when new. Failure to oil new trays when first used can affect release properties and longevity.
The Flat Trays are also known as:
Swiss style trays, Flat trays, 3 Sided trays, Three sided trays, 4 Sided trays, Four sided trays, Lamington trays, Coffin trays, Slab cake trays, Quiche trays, Cooling wires, Perforated trays, Plain trays, Pasty trays, Focaccia trays, Pizza trays, Ginger bread trays, Frittata trays, Macaroon trays, Croissant trays.