yeah, not stainless. just wondering how to keep from testing samples so i have some sour beer in a year or so.
I really like to taste samples. It tells me a lot more than just the hydrometer number. One thing you can do is just add back 5 ozs of fresh wort from the next beer you brew to top it up. It will create a little activity that will help scrub the O2 you introduced when taking the sample, but will not affect the souring. 5 ozs in a gallon (128 ozs) is only 4%.