The remnants of a Brahmana's food are like nectar. They are like the mother's milk. People highly value those remnants. The god, by cating them, attain to Brahma.
अमृतं ब्राह्मणोच्छिष्टं जनन्या हृदयं कृतम्। तज्जनाः पर्युपासन्ते सत्यं सन्तः समासते॥