At High Mass the Priest blesses the incense with the following prayer:
ER intercessionem beati Michaelis Archangeli, stantis a dextris altaris incensi, et omnium electorum suorum, incensum istud dignetur Dominus benedicere, et in odorem suavitatis accipere. Per Christum Dominum nostrum. Amen.
HROUGH the intercession of the blessed Michael the Archangel standing at the right hand of the altar of incense, and of all His elect, may the Lord vouchsafe to bless this incense and to receive it in the odour of sweetness. Through Christ or Lord. Amen.