No. Not a kit. I've done 4 extract batches with recipes so this is my 1st personally written one. I've figured out what I want my gravities to be at each volume, but with the possibilities for changes from boil evaporation, miscalculations, being new at it, etc, I wanted to be able to be as close to my goal as I could because I know too much and ill go under and too little and ill be too high. I have all grain brewed multiple times in the past and used a calculation to figure this out but I can't remember it!!