After force carbing should I bleed off the pressure If I want to store the keg or should I leave it as is? Also, for future reference what would be the most effecient way to force carb? Last time I hooked up the CO2 to the keg and then put them in the fridge. Or, should I cool the keg first and then hook up the C02. Would this make a difference in the amount of CO2 used?