I brewed a batch of Coopers Austrailian lager about six weeks ago which I transfered to 330ml bottles and I put half a spoon of sugar in each bottle for carbonation, The instructions say to leave it for 12 weeks min but I decided to try one last night. When I opened the bottle it just eploded like a frothy volcano, Now I'm new to this game(this been my second brew) but it seems to me that my beer is way to carbonated, is there anything I can do to fix this problem or should I just wait another 6 weeks and see wat its like, If I can't fix it do you know any tricks to reduce the froth when I open it, Thanks