How do microwaves with different power ratings differ?

The main thing is that power affects heating speed: at 1000W a dish will heat up twice as fast as at 500W 🔥 Weaker microwaves take longer to cook, but they're gentler - less risk of drying out food or heating it unevenly. If you cook often and are in a hurry, go for something more powerful, but for reheating and gentle cooking a lower-wattage one will do just fine. Another important factor is the cavity size - in a larger microwave, heat distributes more evenly.

If you cook frozen stuff often, go for 800-1000 W - with low power you'll be waiting half the day for it to thaw. I've been using a 900 W microwave for about seven years now, and here's what I've noticed: I heat pretty much everything at maximum power, except maybe some delicate cottage cheese casseroles - those really need about five minutes at medium power, otherwise the top gets hot while the inside stays cold. When you're using high power, it's also useful to keep a close eye on the time, literally down to a few seconds, because sometimes the difference between "heated perfectly" and "dried out" is just thirty seconds. I fish from a motor boat pretty often out in nature, so when I get home and need a quick bite - a powerful microwave really saves the day.

Power isn't just about speed, but also about even heating. I've noticed that in weak microwaves (500-600 W) food does heat up more gently, but here's the catch - you get cold spots, especially if you forget to stir. With 800-1000 W though, you can run it at half power through a special mode and get both speed and even heating at the same time. Plus, weak models are just inconvenient in everyday use - even heating a simple mug of water takes like ten minutes, and that's seriously annoying.