Neat idea, and I love the slowdown that happens when you pass through a dish! Two recommendations:

• I wish that there was an indicator as to whether or not I have soap to clean a dish. It seems like I can only clean one dish, no matter how much soap I pick up, which sounds like an intentional design decision. But that needs to be communicated to the player somehow, and it's hard to remember in the middle of gameplay whether I've got soap or not.
• I thought I had to refresh the webpage to play it again, but I discovered that hitting R will reset the game after losing. I wish this was explicitly stated in the description or the game itself! I would have played a lot longer if I didn't think I had to refresh to play again.

It's clean, it's polished, and it's fun. Good job!