Wash the fresh limes thoroughly.

If using ginger, peel and grate or finely chop the ginger.

Cut the limes in half and squeeze out the juice, making sure to remove any seeds.

Prepare the sugar to sweeten the lemonade to your taste.

In a large pitcher, combine the fresh lime juice and brown sugar. Pour in water and stir until the sugar is fully dissolved. If using ginger, combine the fresh lime juice, sugar, and grated or chopped ginger in a blender. Pour in water and blend until the sugar is fully dissolved and the ginger is well mixed.

If you prefer a smoother drink, pour the lime mixture through a fine mesh strainer or cheesecloth into a large pitcher. If using ginger, this step is necessary to remove any ginger pieces.

Press down with a spoon to extract as much liquid as possible. Discard any ginger or pulp left behind.

Taste the lemonade and adjust the sweetness with more sugar if needed. If you want it more tart, add an extra squeeze of lime juice.

Transfer the lemonade to a pitcher. Refrigerate  for at least 30 minutes to chill, or serve immediately.

When ready to serve, pour the lemonade over ice cubes in glasses.

Garnish with lime wedges for an extra refreshing touch if desired.