This paper is based on our preparation of the seminar 'Nouvelle approche des sources chinoises (principalement le Tongdian) sur l'Asie centrale à l'ouest des Pamirs' at the Collège de France since autumn 2020. We assume that the 'golden poluo' (ultimately from Sanskrit pātra-?) mentioned in the entry on Cao (Ishtīkhan) in the Suishu was a huge container of sharbat or another beverage or soup, serving the poor people and worshippers around the temple of Takhsīch. The big cauldron at Khodja Akhmed Yasawi (Kazakhstan) may be a continuation of this Zoroastrian practice, of which evidence in the Anthologie de Zādspram is detectable. As to the gold poluo presented by the Tsenpo of Tubo to the Tang court in 658 and the silver one by the king of Qiuci in 675, they were both likely wine drinking vessels carefully chosen for celebrating the restoration of the Tang power in the Tarim Basin after the turbulence in the middle 650s and in the late 660s, respectively.