And if you offer a grain offering of your first fruits unto the LORD, you shall offer for the grain offering of your first fruits green ears of grain dried by the fire, even grain beaten out of full ears.
Read Chapter 2
Ambrose of Milan
AD 397
The sacrifice should consist of a gift, the newest of the new, or it should be dried or broken into pieces, or it should be unbroken. The “newest of the new” belongs to the early season of the year and is consistent with the nature of first fruits. Now it has been made clear to us that this refers to those who are renewed by the sacrament of baptism. .
And break Hebrew has simply, "corn beaten out (or ready to be beaten out) of full ears. "(Haydock)
These were to be offered at the Passover. (Du Hamel)