Plastic stuff from the dishwasher tasting like soap?

I have noticed recently that the stuff that is plastic, cups and Tupperware, etc. that is dishwasher safe is starting to taste weird. I asked DH, who was oblivious to this and he said right away that the stuff smells (and tastes) like the dishwasher soap. I sometimes tend to put extra but not THAT much and shouldn't it rinse off fully anyway? I bought one of the Finish dishwasher cleaners and used it so hopefully that will work on any built up soap residue in the machine and I will be more careful of the amount of soap I add.

Has this ever happened to anyone? I am wondering if plastic, even if dishwasher-safe, has a "shelf life" for the dishwasher.

Thanks.

Re: Plastic stuff from the dishwasher tasting like soap?

I have noticed this, or they smell bleachy. I try not to put some plastic things in due to this.I think the plastic just absorbs the cleaner and it freaks me out a bit.