Yonny beat me to it. Great natural liquid and preservative.
Jammed with salt and salty fish extract and some sugar. Can’t go wrong. I have used it loads in the past, not so much anymore because I’m using liver hydro at the moment to complement the bait.
You can use this stuff to create dips and glugs yourself due to its preservative properties. Add some powders of choice and give it a good shake, cut with a bit of water if necessary.
Only annoying thing is the lid, I’d advise cutting the spout bit off.
All this talk, I may have to add it back in to the mix!