Does the presence of food remnants in the mouth after performing ghusl for janabah invalidate the ghusl, even if these remnants were found despite rinsing the mouth during ghusl?

The ritual bath (ghusl (definition)) of the questioner is valid, regardless of whether the rinsing of the mouth (madhmadhah) is considered obligatory in ghusl or not. This is due to the difference of opinion among jurists regarding whether the inside of the mouth and nose are considered internal parts, in which case it would not be obligatory to convey water to them, or if they are considered external parts, in which case it would be obligatory to convey water to them through madhmadhah and istinshaq (rinsing the nose). The majority of scholars hold that madhmadhah and istinshaq are sunnah (definition) (recommended), while the Hanbalis and Hanafis consider them obligatory. However, some of them do not stipulate that water must reach all parts of the mouth. The Hanbalis have explicitly stated that exaggerated rinsing is recommended but not obligatory. As for the Hanafis, they have stated that food remnants between the teeth do not affect the validity of ghusl.