I know you aren't supposed to clean your coins, but can I clean this one with soup and water with a toothpick?
It IS worth it for the educational value alone. I think I see a 1993-D, which makes it a Zincoln. Pick at it all you want. You'll learn things, and you won't be destroying anything worthwhile.
Your coin is only worth 1 cent so worst case, you do something horrible to it and the value is reduced to....oh wait, you can't hurt it's value. I agree with @BooksB4Coins and @V. Kurt Bellman (don't tell anybody I agreed with Kurt), coins like this make great practice pieces. Try diff soaps, rinsing, maybe a stiff brush. Use it to learn how all this diff things behave.
I had a New Zealand 20 cent whose reverse (the kiwi side) was about 30% covered by translucent brown gunk. I soaked it in Heinz' Ketchup for an afternoon and all but a few stubborn tiny spots were gone. I have a jelly jar full of "monkey with them when you get bored" coins.
Good chicken soup is good for eating. Bad chicken soup is up for grabs. There is no bad bourbon, so I've never tried that on coins.
That ship has sailed, however, the coin & some basil may improve the taste of the soup (or soap) - but I would "boil the crap out of it" first!
Well if you are going to try maybe this metal detecting guide to cleaning coins will help (he caveats everything about why you shouldn't clean coins so be aware!) http://www.metaldetectingworld.com/cleaning_preservation_coin.shtml