I presently buy both White Vinegar (containing acetic acid 5%) and Apple Cider Vinegar (ACV) in bulk, at five litres at a time. I go through the White Vinegar in about three weeks, while the ACV takes far longer - anything up to six months!
The vinegar comes in a plastic container ((HDPE ♴) High Density Polyethylene, with a plastic cap (PP ♷) Polypropylene) as it's considered food safe and suitable for up to one year of storage.
I find however that pouring from the large plastic containers is messy and awkward and am looking into a glass dispenser system as used at parties with lemonade and such. However, unlike a normal glass container, a dispenser has weak points: such as a metallic tap, silicone gadgets, as well as a rubber lid.
Long time canning experts Kilner offer a robust looking glass dispenser in just the right volume (five litres) but I'm unsure of the following:
1: The trademark orange rubber seals used at the top mouth opening of the jars: will the acid and oxygen mix dissolve this? The vinegar is unlikely to be in contact with the rubber as I will use the tap at the bottom, but the fumes may eat away at it?
2: The tap at the bottom is not so robust (if Amazon reviews are to be believed) but aftermarket option include more robust version in both brass and stainless steel:
Stainless Steel: https://www.amazon.co.uk/dp/B06XPG2CLS?psc=1
It seems that white vinegar is used to clean brass, but I wonder about permanent contact, so I'm unsure which to rely upon?
3: I'm informed that even glass itself has a lifespan when storing vinegar (it's an acid after all) and am fearful that the glass walls may even wear down?!
I would like the convenience of a tap, with the reliability of an inert material like glass, but will the vinegar simply wear everything out?