Add the green tea bags to the cold water in a large pitcher. Cover and refrigerate for 8–12 hours. Remove the tea bags without squeezing. The tea should be smooth, clean, and never grassy.
Add the lightly crushed cardamom pods and the lemon zest strip to the cold brew tea. Let infuse for 10–12 minutes only, just until a soft, aromatic lift develops. Remove both immediately — longer contact adds bitterness and medicinal notes.
Stir in 1½ tablespoons of honey until fully dissolved. Taste and add up to ½ tablespoon more only if needed. This drink should stay dry and aromatic, not sweet.
Refrigerate for 1 hour to fully integrate flavors.
Fill glasses with ice, pour over the chilled cold brew green tea, and garnish with optional lemon peel twists.
