About 700 ml. I tasted the beer and it didn't taste good. This was my 1st all grain and I didn't vourlouf, that may have been the off flavor. I went ahead and started over. I think I will go get grain alcohol and use it in my blow off bottle? What a rookie mistake! After I poured it out I did think that it is a no rinse concoction, fermentation is, for the most part over, what would it hurt. So now I am regretting pouring it out. I think I read somewhere on here, never pour out! May not be as good as I wanted, but I wouldn't have an empty keg. Hahaha