Jakar hatimin baya tana ɗaukar gefen hatimin ɓoye a tsaye don tabbatar da amincin ƙirar gaban marufi. A cikin tsarin ƙirar marufi, ana iya saita tsarin jikin jakar gaba ɗaya don kiyaye hoto mai daidaituwa, mai laushi da kyau. Rufewa yana kan baya, wanda ke sa ƙarfin ɗaukar nauyin bangarorin biyu ya fi karfi, kuma yana rage yiwuwar lalacewa.
A ƙarshe, jakar hatimi na baya na iya yadda ya kamata rage kusan 40% na farashi da amfani da kayan marufi, fa'idar farashi a bayyane yake.