2,016. Disposing of the Flour Offering
Hilchos Sotah 4:14
If the kohein brought the woman’s flour offering before having her drink the water, it is valid. If her flour offering was rendered ritually unclean before it was put into a Temple vessel, it should be redeemed like any other flour offering that is rendered impure before being sanctified in a Temple vessel; the woman then brings another offering. If the offering was rendered impure after being sanctified in a Temple vessel, it is burned. Similarly, if a woman says that she committed adultery before the fistful of flour was taken from her offering, if she refuses to drink, if her husband declines to have her drink, if witnesses arrive testifying to her adultery, if her husband died or if she died – in all of these cases, the whole flour offering is to be burned. If any of these things occurred after the fistful of flour was offered, the rest of the offering is not eaten.
Hilchos Sotah 4:15
If the suspected woman’s husband was a kohein, the rest of her offering isn’t eaten because he has a share in it; it’s also not burned on the altar in its entirety as is the case with other flour offerings brought by kohanim because the woman has a share in it. In such a case, the fistful is offered on its own and the rest is scattered on the ash pile. If the witnesses to the woman’s seclusion are found to have lied, the offering is completely secular (and need not be redeemed).