- If using a standard cucumber, peel it (no need to peel for an English cucumber!). Roughly chop the cucumber. Chop the apple, keeping the skin on.
- Place the cucumber, apple, water, and salt in a blender. Blend on high until pureed and a juice forms.
- Pass the juice through a fine mesh sieve or a nut milk bag to strain out the pulp. Discard the pulp (or use: see ideas above). Stir in the fresh lemon or lime juice (add more if desired). Drink immediately over ice, or chill before drinking.