You have already done it, you wash your underwear, and after a while you find that the laundry was not washed out as it should. You say, it was just a coincidence, maybe you misset the work program, misting the washing powder. So wash up another washing machine and again you will become the same, the underwear is not perfectly washed. What can it be?
You use a high-quality powder for washing, so why doesn't the laundry run out as it should? Why isn't white really white, why do all the spots remain? The answer is simple, the powder you use is not as good as the face. On the Czech market, the appearance is deceiving, the two same pills may have different quality. The solution is simple, only the drugstore from Germany ensures that your underwear will always be washed perfectly.