Phanta Kalpana – Hot Infusion in Ayurveda
In this the herb is crushed/grinded and soaked overnight in hot water and strained early morning. This liquid is called Churna drava or Phanta or Hot infusion. The essential part (saara bhaaga) of herbs is absorbed easily and fastly in the hot water. Also, those substances whose essential part is completely obtained neither in Hima Kalpana nor in kwatha Kalpana (may be destroyed in it). Hence, it is considered the best kalpana.