Being from the Caribbean, ginger beer is particularly close to my heart. It has to be made right, with fresh ginger, to give it both the flavor and that zing. A lot of folks will ferment theirs by adding some yeast to it. Personally, I prefer the taste of an unfermented ginger beer, so I just top it off with soda water to give it some fizz.
Prepare the ginger: Chop the ginger into small cubes, leaving the skin on but removing any impurities. Add half of the ginger to the blender, along with the water. Blend until smooth, and then strain into a bowl, pressing the ginger pulp to get all of the flavor. Return pressed pulp to the blender, along with half of the remaining ginger and the strained liquid. Strain and repeat, and then do it once more with the remaining ginger. This method will extract maximum ginger flavor and should be done a total of 3-4 times. Taste for flavor and “zing” and repeat the process again if desired.
Finish the ginger beer: Make the ginger beer by adding lime juice and sugar to the ginger water. Stir and taste for sweetness. Add more sugar if desired. To serve, add ice cubes to a tall glass, follow with ginger beer, and top it off with soda water. Stir again and serve.