Kaushitakagrihyasutra 3.14: atha caturdaśaḥ khaṇḍaḥ

Now, month by month, one should make offerings to the ancestors.

Having seated an uneven number of Brahmins learned in the Veda, at least three, in the manner of the ancestors, having scattered sesame seeds into an uneven number of water-vessels, he should pour [the water] into the hands of the Brahmins.

After this, having adorned them, having offered [a portion] in the fire, and having assigned the food with "N.N., this to you!", he should feed [them].

While they are eating, he should mutter the great mystical utterances, the Sāvitrī, the Madhuvātīya verses, the verses addressed to the ancestors, and the Pāvamānī verses, and any other [texts] according to his ability.

When they have eaten, he should offer sacrificial rice-balls.

Some [say he should offer them] beforehand.

To the west of them, he puts down slightly concealed sacrificial rice-balls for the wives.

He should announce the remainder to the Brahmins.

The procedure beginning with the offering in the fire has been explained by the sacrifice of sacrificial rice-balls to the ancestors.

Having given threads, he should give ointment, unguent, perfume, flowers, incense, and lamps for each sacrificial rice-ball.

Now then, the ancestral rite dedicated to a single person.

There is one strainer;

one water offering for hospitality;

one sacrificial rice-ball.

There is no offering in the fire.

The dismissal is with: "May you be pleased."

Thus for the deceased for one year.

But [at the ancestral rite] for the fourth [ancestor] there is dismissal.

At [ancestral rites for] prosperities and works of public charity, he should feed [Brahmans] in even numbers.

The ritual procedure is clockwise (from left to right).

Barley serves the purpose of sesame.