I tried a heineken clone recipe i found online and and as it was my 2nd batch i was very new to the game! The hops required hallerter herbsucker but they were out of stock so i used hallerter blanc thinking it would be similar. I fermented for 18 days and kegged for a week and the whole time its tastes pretty awful. Im leaving it im the keg to see if time changes the flavour but a real funky taste and slight sourness. Its either the hops or the yeast as it was liquid and i did not make a starter. It was in a smack pack that says leave at ambient for 3 hours. Also it was the only batch i did not take a gravity reading as i assumed it was well fermented