How much Coriander did you use? How do you know you over did it?
First batch I brewed, I used .5 oz for 5 gal. Coriander was not even detectable, so for the second batch I doubled it to 1 oz for 5 gal. My wife can't taste or smell it but I think it's a forreground flavor, not a background note like it should be. So next time, I'll use .75 oz and see how that goes.
I was also considering a lactic acid addition instead of fruit to sour it up a bit instead and see if it balances out. I think I'll just experiment with both things individually on a small scale.
Don't get me wrong, I'm not at the dumping stage, the beer is drinkable and I'm sure that my neighbors will help me along to free up the keg for another batch of their "lawnmower beer".