Rinse the entire celery bunch under cold running water. Use a vegetable brush to remove any dirt from the stalks and base. Pat dry with a clean kitchen towel.

Trim the bottom inch of the celery bunch and remove any damaged outer stalks. Cut the remaining stalks into 4-inch pieces for easier processing.

For a juicer: Feed celery pieces through your juicer one at a time. Alternate between thick and thin stalks for optimal juice extraction. For a blender: Add celery pieces and 1/4 cup filtered water to your high-speed blender. Blend on high for 60-90 seconds until completely smooth.

Pour the blended mixture through a fine-mesh strainer or nut milk bag into a large bowl. Press the pulp firmly to extract maximum juice. For ultra-smooth juice, strain a second time through cheesecloth.

Pour your fresh celery juice into a glass and drink within 15 minutes for maximum nutritional benefit. If adding lemon, squeeze it directly into the glass and stir gently.