Can I preheat my microwave convection oven when want to bake in mode It seems take a while heat put the cake mix in.?

While some microwave convection ovens have a preheat function, microwave ovens do not have true preheat capability.

Microwave ovens are designed to cook food quickly using microwave energy, which doesn't require preheating.

For baking in microwave mode, you may want to start at a low power level and gradually increase the power as the food cooks.

Here are some tips for baking in a microwave convection oven:

- Check your owner's manual for specific instructions on using the microwave convection oven for baking.

- Use the convection bake mode rather than microwave to bake most foods.

- Use bakeware designed for microwave convection ovens.

- Reduce cooking times by 25-50%.

- Check for doneness more often than you would when using a conventional oven.