>But don't put two pods in, i.e. one in the detergent tray, and another detergent pod into the tub because these pods are very concentrated and harsh and will damage plates. Only add a little extra powder

This is a strange optimization choice. I'd much rather replace plates slightly more often vs. spend time each night handwashing or rinsing dishes. My philosophy is to put everything in the dishwasher regardless of 'diswasher safe'. If it breaks, I replace it with some other dish/cup brand. In a short time you are left with durable cook and glassware that the dishwasher can clean by itself.