Cracked open a festa cream ale from a grolsch bottle after a week and it is almost flat. I know 1 week is not much time, but I put 3/4 cup of dextrose/2 cups boiled water in bottling bucket and swirled in while racking after cooling. The instructions in retrospect call for 1 to 1 1/2 cups dextrose. Will it come around in time?