I had a bunch of extra grapefruits that my wife had bought for a baby shower. nobody ate any, i decied to make something with them. i mashed up the grapefruit mixed into a gallon of water and added approx. 2 cups of suger or 3. on day 2 it was fermenting fine, i though i should add some cut up strawberries since grapefruits are disgusting, so i added strawberries with some nutrients diamonium phophates. after about a week, still fermenting good, i thought maybe i should add more nutrients. when i opened the bucket it reeked. my wife said it smelled moldy. i removed all the strawberries and added more nutrients and set it back on the shelf. a week later i opened it up again and it was just as bad if not worse. i decided to rack it and refridgerate it and see what happens. been in the fridge for about a week now and still not very pleasant. im not sure what to do. is this normal? bad fruit? incompetant operator? please help