There is at least one follow up to that dishwasher one, or perhaps just a related one, about dishwasher detergent.

He got some pods chemically tested to vindicate his hatred of them. They scientifically do not work as well as the much cheaper loose powders. Specifically pods don't utilize the prewash, which is an important part of the machines ability to clean what's being run through.

I think he also created his own line of dishwasher detergent because of his lab results iirc