When using a lower wattage microwave oven, you typically need to increase the cooking time compared to what is specified on the packaging for a higher wattage microwave. However, doubling the cooking time is not necessarily the correct approach. While there is no exact formula for converting cooking times between different wattages, there are some general guidelines you can follow.
One common rule of thumb is to increase the cooking time by about 50% when using a 600-watt microwave compared to an 1100-watt microwave. This means you would add an additional 50% of the specified cooking time. For example, if a frozen dinner suggests cooking for 4 minutes in an 1100-watt microwave, you would increase it to approximately 6 minutes in your 600-watt microwave.
It's important to keep in mind that these are just approximate guidelines, and you may need to adjust the cooking time further based on your specific microwave and the food you are preparing. It's always a good idea to monitor the food as it cooks and adjust the cooking time as needed to ensure it is thoroughly heated and cooked to your desired level.
Additionally, I recommend checking the manufacturer's instructions for your specific microwave oven, as they may provide more specific guidance on adjusting cooking times for different wattages.