Imashini yo gupakira imifuka myinshi ya Shanghai Boevan yitwa BVS yagenewe imifuka ifunga inyuma, imifuka ifunga impande eshatu, n'imifuka ifunga impande enye. Bitewe n'ibisabwa mu miterere y'ibicuruzwa, ishobora no gukoreshwa mu gupakira imifuka ifite imiterere yihariye. Ikunze gukoreshwa ku bicuruzwa bifite ifu cyangwa ibintu bito nk'ifu ya poroteyine, ifu y'imbuto zumye zikonjeshejwe, probiotics, ifu y'amata, ifu ya kawa, isukari, n'ibindi.