How long to preheat an OTG?

I have an Oven Toaster Grill by Oster in 10 litres capacity. I am new to baking and every recipe for egg muffin says you have to preheat the oven but none of them say for how long. This is very confusing baking jargon. So if any recipe calls for preheating, how long should I preheat?
P.S: I know there are similar questions posted but none of them seem to answer in general, they are specific to a recipe (bread/cake et al).
Best Answer
When you set the oven to the required temperature and then close the door and turn it on, pretty soon you will probably see the heating element begin to glow orange from the heat. When the oven is up to the selected temperature, the power to the element should then switch off for a while, and you should be able to see the orange glow diminish and start to fade. That is when the oven is considered "pre-heated". My "big" electric oven (regular size, really) takes about 10 minutes to pre-heat, so your little OTG should be quicker -- maybe 3 to 5 min.(?), but watch the element, or, as Jolenealaska mentions, the indicator light. If it has an indicator light, when the light goes out for a while, it's pre-heated.
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How do I preheat my OTG oven?
How Long to Preheat Your Oven Before Baking? In general, the rule of thumb when it comes to baking cakes is to preheat your oven to the directed temperature for 20 to 30 minutes before popping your cake in. That extra time will pay off when you pull out your perfectly baked cake!How long should I Preheat oven before baking?
Preheating means turn on your oven so that it reaches the proper and required temperature. This preparation is done by heating the oven empty, without anything, at least for 10 minutes at the specified temperature, before you put the cake tin or other things to bake. Empty oven means no tin/utensils.What is pre heat in OTG?
* Bake the cake in bake mode (Bottom rods alone should heat up) for about 35 - 45 mins. at 180C or the temperature specified in the recipe. * Make sure to place the wire wrack in the middle wrack. *Cake has to be baked for at least 30-40 mins.How To Preheat OTG \u0026 Microwave Oven | OTG \u0026 Convection Microwave Guide | All You Need To Know!
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Answer 2
Put an oven thermometer inside and check when the desired temperature is reached.
As byproduct you learn how accurate your oven is.
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