I cannot change the time and temperature in my OTG

Can I use plastic or glass material in my Philips Oven Toast Grill?

Can I place something on top or in the sides of my Philips Oven Toast Grill?

Can I use water based recipes in my Philips Oven Toast Grill?

Will my Philips Oven Toast Grill turn off if I open the door?

Can I use upper and lower heating separately in my Philips OTG?