I have been dispensing Peroni (6.6 G Kegs) and it tastes and smells as expected for 14 days after kegging.
However, after this time, the product although still pours perfectly develops a funny smell.
I store the keg at 12 degrees, dispense at 3 degrees, and push the beer out using 60/40, with the regulator valve set to 42 psi.
I clean the beer line after each 52 pint keg, along with my faucet and keg coupler.
It’s not a huge issue as there is normally only around 7 pints left after this time period. I’m just wondering what the root cause is because the same thing has happened on my last 2 kegs.
Interestingly, both have had a best before of 05.09.20.