Can lay people cleanse the chalices?

Can a lay person cleanse chalaces after mass or is it an obligation of the priest to do so? My pastor delagates this to lay people and I am not sure if this is liturgically correct or not. Thanks

General Instruction of the Roman Missal:

  1. The sacred vessels are purified by the priest, the deacon, or an instituted acolyte after Communion or after Mass, insofar as possible at the credence table. The purification of the chalice is done with water alone or with wine and water, which is then drunk by whoever does the purification. The paten is usually wiped clean with the purificator.

While it is permissible to purify the chalice after mass, unless the lay person is an instituted acolyte then he or she should not be purifying the chalice.

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