My first all grain batch I got ambitious and tried to get into water chemistry. I was doing okay except I forgot to flip the digital scale from oz to g and added ounces of salts to the water. Needless to say it was very salty. I went ahead and bottled it and ended up using most of the batch to boil hot dogs. I forgot I had several bottles and discovered them three years or so after I brewed it. It gushed and tasted like the liquid from a can of black olives. Needless to say I dumped those bottles.