Prep the pineapple: Slice off the top and bottom.
Stand it upright and cut away the skin, following the curve. Remove any “eyes.” Cut the fruit from the core, then chop into chunks.
Blend until smooth: Add pineapple to a blender with 1/2 cup cold water. Blend on high until very smooth, about 30–60 seconds.
Add more water if needed for a pourable texture.
Season lightly: Add a pinch of salt. Taste. If it needs brightness, squeeze in lime or lemon.
If it’s not sweet enough, blend in a touch of honey.
Optional ginger twist: Add a small slice of peeled fresh ginger and blend again. Start small; a little goes a long way.
Strain (if you prefer it smooth): Pour the juice through a fine-mesh sieve or nut milk bag into a pitcher, pressing to extract the liquid. Skip this step if you like a pulpy texture.
Chill and serve: Pour over ice and enjoy right away.
Garnish with a lime wheel or pineapple wedge if you like.