The time it takes for a cold oven to heat up can vary depending on several factors, including the type and model of the oven, its energy source (electric or gas), and the desired temperature setting. However, on average, it typically takes around 10 to 15 minutes for an electric oven to preheat, while a gas oven may take slightly longer, around 15 to 20 minutes.
It's important to note that these are general estimates, and the actual preheating time can differ. Some ovens may heat up more quickly, while others may take longer, especially if they are older or have specific features that affect heating times.
To ensure accurate preheating times and optimal baking results, it's a good idea to consult your oven's user manual, as it may provide specific information about preheating times for your particular model. Additionally, some modern ovens have preheating indicators or signals that let you know when the desired temperature has been reached.
In any case, it's generally recommended to preheat your oven before baking to ensure that the oven reaches the desired temperature and provides consistent heat throughout the cooking process. Preheating allows for more accurate baking times and helps achieve the desired texture and doneness of your food.