Wash the carrots thoroughly under running water.
Peel the carrots using a vegetable peeler.
Chop the carrots into smaller pieces for easier juicing.
If using, wash and core the apple, then chop it into pieces.
Peel the ginger and slice it into small pieces.
Add the chopped carrots, apple, and ginger into the juicer.
Juice the ingredients until smooth and fully blended.
Strain the juice through a fine mesh strainer if desired.
Stir in the lemon juice for added flavor.
Serve immediately over ice or chill in the refrigerator.