Somebody says, “I’m going to bring an issaron, a flour, to the Beit HaMikdash (the Temple).” He brings a Mincha (meal offering) consisting of one issaron, which is the smallest amount implied by the word issaron. If he says, “I’m going to bring issaronim,” the plural form of issaron, he brings two issaron, which is the smallest amount implied by the word issaronim—two issaron in these cases. By not specifying how many issaron, he brings the minimum amount implied by the word.
He says, “I made a swear to bring a Mincha, and I specified a certain number of issaron, but I don’t remember what the number was.” He brings six issaron, which is the maximum amount of flour a person could bring in a single Mincha offering. He made the vow to bring an amount. That’s either one all the way through 60, and he doesn’t know which one it was. It’s possible that if he brings a lower amount than he declared, he is not doing things correctly. Therefore, we go to the highest possible amount to be very clear and very sure that he brought what he needed to bring.
If somebody makes a declaration, “I take upon myself to bring a Mincha,” but doesn’t specify which type of Mincha, there are five types of Menachot (meal offerings) that Torah brings down: a Solet, Machavat (griddle offering), Marcheshet (pan offering), Challot (loaves), and Rekikin (thin wafers), all different types. But he doesn’t specify which ones. We say that he could choose from any of the five types of Menachot (meal offerings), voluntary Menachot. He could pick which one he wants to bring. Rabbi Yehuda says, “Yavi Minchat HaSolet, shehi meyuchedet shebaMenachot.” He brings a Mincha of Solet, a fine flour, because it’s unique amongst the Mincha offerings. That’s the only one called a Mincha without any other title by the Torah. Therefore, when he says the word Mincha, we can make the assumption, according to Rabbi Yehuda, that he’s referring to the Mincha of fine flour, the Mincha of Solet.