I have three Hobgoblins (red centre, soft black surround resusable bung) and an Old Speckled (black centre, hard red plastic surround non-reusable bung).
First use, MYO Bitter, November '19, two kegs + bottles; one keg leaked and had to be transferred to a different dispenser and drunk quickly (ah such a shame). My notes said 'taste better than expected' )
Second use, MYO Bitter Jan/Feb '20, Three kegs + bottles, two came out 'lively', one had suspect leak from bung, had to transfer to bottles and re-prime. Drank one keg via built-in tap, one via Klarstein air-powered dispenser (not CO2). Still drinkable 5 days after tapping.
Third use, MJ New Zealand Pilsner July 20, 3 kegs + bottles, one keg flat - suspect air leak from bung. "O.K. ish" drink served from the Klarstein, though pretty flat.
So my main issue hasnot been metallic taste but rather, losing pressure.
First use, MYO Bitter, November '19, two kegs + bottles; one keg leaked and had to be transferred to a different dispenser and drunk quickly (ah such a shame). My notes said 'taste better than expected' )
Second use, MYO Bitter Jan/Feb '20, Three kegs + bottles, two came out 'lively', one had suspect leak from bung, had to transfer to bottles and re-prime. Drank one keg via built-in tap, one via Klarstein air-powered dispenser (not CO2). Still drinkable 5 days after tapping.
Third use, MJ New Zealand Pilsner July 20, 3 kegs + bottles, one keg flat - suspect air leak from bung. "O.K. ish" drink served from the Klarstein, though pretty flat.
So my main issue hasnot been metallic taste but rather, losing pressure.