Smeg Thermoseal is the result of many decades of development in oven technology and is actually a combination of a number of innovations...
The Smeg oven cavity is completely shrouded in 20mm thick ceramic insulation, wrapped in reflective foil sheeting. This keeps the heat inside the oven and away from surrounding cabinetry.
Smeg Thermoseal ovens do not draw ambient air into the cavity during cooking.
Smeg Theromseal ovens feature new Venturi technology which allows excess moisture, of foods with high water content, to escape into the cooling system and reduces any condensation build-up. The Venturi valve also contains a catalytic converter which deodorises any steam before it is released.
Smeg Thermoseal ovens have a unique cooling system with a 22 blade tangential fan which allows cool air to circulate around the oven cavity (not in the cavity) and up through the panes of glass in the door.
There are many benefits of Thermoseal cooking - the perfectly controlled cooking environment means roasts retain nutrients, natural juices and flavour, pastries crisp to perfection and cakes rise evenly and are light and airy.