[If] one placed an onion in lentils, if it is whole, [it is] permitted; but if he cut it, [it depends upon] whether it imparts flavor. And [regarding] any other cooked food, whether whole or cut, [it depends upon] whether it imparts flavor. R' Yehudah permits [it] in tzachanah, since it is [there] only to take away the foul odor.

[If] one crushed an apple and placed it into dough and it leavened it, this is forbidden. [If] barley fell into a pit of water, even though [its waters] were spoiled, its waters are permitted.

[If] someone removes hot bread from an oven and places it on the mouth of a cask of terumah wine, R' Meir prohibits [it], but R' Yehudah permits [it]. R' Yose permits [it] for [bread] of wheat, but forbids [it] for [bread] of barley, because barley draws.

[If] one fired an oven with cumin of terumah and baked in it, the bread is permitted, since there is no flavor of cumin, only aroma of cumin.