I have tracked every batch since 2004. Originally I just wrote a batch code non each container, SS barrels and retail. Then as I made more I changed. I now have serial numbers on every label. Each container from SS drums to the retail containers and my grading test bottles get a serial numbered label. I then have a log book in which I log every container. For example, if I pack a SS barrel's syrup into retain my log book might say barrel # 02461 packed into containers with # 03502-03659 for example. All sample bottles get stored for 8 years for every batch.
I have never had any issues but I just like being what I consider "prepared".
As I pack batches into SS barrels, each gets a test bottle (sometimes a batch may be packed into 2 barrels, in that case there is 2 serial numbers with just 1 sample/test bottle)
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.