Wash the celery and spinach thoroughly. Chop the celery and spinach (stalks and leaves) and add them to a high-power blender. Add the water.
Step 2
Blend on medium until the veggies are fine. Then increase the speed to high. Keep blending until the juice is very separated.
Step 3
Line a sieve with a clean kitchen towel or a cheesecloth and place it over a jug or bowl. Pour the pulp and press through the cloth to release the juice. Remove the fabric and twist to squeeze out every last bit of liquid from the pulp.
Step 4
Add the lemon juice to the veggie juice and stir. Sweeten with stevia if desired and drink immediately. Store the pulp and reuse it in other recipes.