18 electrolux usage, tables and tips
General instructions
With Convection with ring heating element 
you can also bake two cakes at the same time in tins placed next to each other on the shelf. This does not significantly increase baking time.
When frozen foods are used the trays inserted may distort during cooking. This is due to the large dif- ference in temperature between the freezing temperature and the tem- perature in the oven. Once the trays have cooled the distortion will dis- appear again.