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השמן תחילה לעולם – and even though it congealed it doesn’t depart from the status of liquid.

ר' שמעון שזורי אומר אף היין – [wine] that congealed does not depart from the status of liquid. But the Halakha is not according to Rabbi Shimon Shezuri.

וגוש של זיתים (lump/clod of olives) – many olives that are attached together. And we are speaking about an impure lump/clod.

בביצה מכוון טהור – the oven [is pure], for food does not defile a vessel. But liquid that comes out from the clod/lump on account of heating, it has nothing for what that it defiles, for since the first drop [of liquid] departed [upon heating], it is missing from an egg’s bulk, but when there is in the clod/lump more than an egg’s bulk, when the first drop exudes there still remained in the clod/lump the equivalent of an egg’s bulk, and when the drop in the clod/lump is defiled, and it returned to being first-degree [of ritual impurity], the drop defiled the oven, for liquids defile a vessel.

אם היו פירודים – if the olives were separate that they are not a lump/clod.

אפילו הן מאה – meaning to say even if they are the measurement of one-hundred eggs, they do not combine to be an egg’s bulk to defile the oil that exudes to become first-degree [of ritual defilement].

ובלבד שלא יגע במשקין – as for example, that he pressed them with flat wooden implements that do not become defiled , for now there is nothing here that would defile the liquids other than the husk/pomace of grapes that someone defiled by a corpse had touched , for he was not careful regarding their contact other than when liquid exudes, and when the liquids come in contact with the husks/pomace of grapes there is already missing the measurement of an egg’s bulk. But food does not defile with less than an egg’s bulk.

יותר מכביצה טמא - that since the first drop had exuded, it became defiled with the equivalent of an egg’s bulk, for even though the liquid that is absorbed in the food is not susceptible to receive ritual defilement with it, it completes its measurement. For like it, we find adjacent (in the next Mishnah) regarding an olive’s bulk from a corpse or from a carrion that had been reduced/shrank in the sun and he placed them in the rain and they swelled up, for the rains that are absorbed/swallowed up complete to make up the measurement.