Hey guys, I recently made a coopers draught with be2 and us-05 yeast..! Fermented at about 18 degrees for 10 days then in the garage for another 4 days at about 10 degrees to clear it up... Worked perfectly... Has been bottled for 2 weeks (inside at 18 degrees)... I threw one in the fridge last nite and tried it just before... Tastes amazing really happy, fairly fizzy ( could probs do with another week in the bottle) but the problem I have is there was no head?.. What could cause this?.. More time in the bottle?..