Cut the chard and kale into smaller pieces. Wash and drain. Wash the parsley. Place on a paper towel lined sheet pan. Don’t worry about drying.
Wash the celery and cucumber. Cut into smaller pieces. Place on another paper towel lined sheet pan.
Wash and cut the ginger into smaller pieces. Slice the citrus in halves. Add to the sheet pans.
Set a medium sieve over a 4-cup liquid measuring cup.
Line a large sieve with a nylon mesh nut milk bag (or a couple layers of cheesecloth) and set over a large bowl.
Juice Everything:
Start with the leafy greens first—spinach, kale, chard, and parsley.
Then, juice the celery, cucumber, and ginger.
Be sure to strain as you go → When the juicer carafe is full, pour it through the sieve into the large liquid measuring cup. When the measuring cup is full, pour it through the nut bag into the large bowl.
Once everything has made it into the large bowl, squeeze in the fresh citrus juice.
Strain the juice, through the nut bag-lined sieve into the 4-cup liquid measuring cup (a big ladle is useful).
Bottle It:
For individual bottles → Line up the bottles and remove the lids.
Strain the juice through a small sieve into the bottles, filling each about two-thirds full. (The medium sieve lined with a nut bag or cheese cloth works too.)
Top off each bottle with coconut water.
For a single liter container → Strain the juice through a fine-mesh sieve into a one-liter bottle. Add the coconut water to individual portions.