Well like the title says at work i always look at things and think to myself wow, I could use that in my homebrew.
Well low and behold Im working its 5 am and Im half asleep. I was taking inventory of product on hand and found a gallon of opened vanilla syrup for shakes that had expired august 20th. The interesting part was that it had a layer of brown trub on the bottom of the gallon and it also had a 1/2 inch of foam on the top of the gallon. At first I just thought it was moldy but I took a look closer and its was bubbling. I opened the gallon to a suprise of a hiss and a pleasant vanilla sour smell.
Part of me wanted to save it and try it as I potentially found wild yeast and part of me said it was gross and threw it out.
Im sad cause I didnt even take a picture.