Following on from an earlier post, I wanted to let you know about the inherent problem with microwave power inconsistency.
Microwave ovens produce a set amount of power. This is normally indicated in the specifications such as ‘900 watts output’. However, as the components heat up through use the power level drops sometimes by only a small amount each time the oven is used.
The power drop off has always occurred but in earlier, older ovens the quality of the components used often made this drop off less noticeable. New ovens today tend to built of a lesser quality using more budget components so this effect is more noticeable and therefore more important. Independent tests carried out have found that in some instances microwaves may produce as much as 50% less power on just the second cook cycle.
It is extremely important if you use the microwave for regular repeated cook cycles ( such as heating more than 1 successive ready meal) that you check that the food is in fact piping hot not just that you have just done the same cook time as before and assuming that results will be the same. Because of this power drop off the cooking results are quite unlikely to be consistent.