Manu has said that if a Shraddha is performed with profuse sesame, such Shraddha becomes inexhaustible. Of all sorts of food, sesame seeds are considered as the best.
वर्धमानतिलं श्राद्धमक्षयं मनुरब्रवीत्। सर्वेष्वेव तु भोज्येषु तिलाः प्राधान्यतः स्मृताः॥