Prep your produce: Wash everything well. Core the apple, trim the celery ends, peel ginger, and peel the lemon if you’re juicing the whole fruit.
If using a juicer: Feed the celery, cucumber, apple, ginger, and lemon through the juicer.
Stir to combine.
If using a blender: Add chopped celery, cucumber, apple, ginger, and lemon juice with a splash of water. Blend until smooth. Strain through a fine mesh sieve or nut milk bag for a clearer juice.
Taste and adjust: For more zing, add a bit more ginger.
For more tartness, squeeze in extra lemon. For sweetness, add another half apple.
Serve cold: Pour over ice if you like and sip slowly.