Start by cutting the watermelon into chunks, ensuring they’re seedless. Wash the berries under cool water, and peel if necessary. Scrub and trim ends of raw beets.

In a high-speed blender, add watermelon, berries, and chopped beets. Add fresh lemon juice and blend on high for 30-60 seconds until smooth.

Check the consistency; if too thick, drizzle in cold water and blend for an additional 10-15 seconds.

Taste the juice. If too sweet, add lemon juice or salt to balance flavors and blend to incorporate.

For a silky drink, strain the juice through a fine mesh strainer into a bowl or pitcher, pressing down on the pulp to extract liquid.

Pour juice into chilled glasses with ice, garnish with lemon slice or mint leaves, and serve immediately.