Answered by Legionary of Christ Father Edward McNamara, professor of liturgy and dean of theology at the Regina Apostolorum university.
 Q: I recently asked [my pastor] if I could set aside (designate) a glass bowl for use by extraordinary ministers of Holy Communion to dissolve consecrated hosts that were only partially consumed by residents in a local senior care center for which we are responsible. The contents could then be poured into the sacrarium. He flat out rejected the idea, and when I asked him what he wants done instead, he said he buries the host in the dirt outside the church building.

Praise the Lord

Link back to original source ... https://zenit.org/