Should This Be My Job?

I used to be a paralegal but left the law field to do something more creative and less analytical. Now, I’m an “office manager” for a real estate/ development company. I understand my job entails some serving and catering to other people BUT my boss seems to think I should be doing everyone’s dishes, putting them away, making sure the diet coke is cold and stocked, and even deep cleaning the kitchen on a regular basis. He blatantly said ‘so that no one else has to.’ At my review, my only critique was that the diet coke wasn’t cold in the fridge and diet sodas aren’t good warm. I don’t drink diet coke. I don’t think the whole office really thinks that way but someone keeps unloading the dishwasher before I get to it and I’m terrified that is going to come up on my review. I keep busy with accounts payable and other real tasks so I feel annoyed that I need to leave my desk to go clean the nasty dirty dishes I don’t even use for someone else. I have so much more to offer than just cleaning and stocking skills. What do you think an office manager position should be required to do?