How is Karupatti Made The sap from palm saplings is extracted skillfully. The sap that oozes from the sapling is collected in earthen pots. The pots are coated with slaked lime to ensure that the sap does not ferment. Most of this activity takes place between January and May. This unfermented juice is a great summer drink; locals call it padaneer. In smaller towns in Southern Tamil Nadu, it's not uncommon to see this drink served on palm leaves expertly folded into mugs.