Mazira a ufa amapangidwa kuchokera ku mazira a nkhuku atsopano. Nkhani za mazira ndi umakaniko anasiyanitsidwa chipolopolo, pasteurized ndi zouma ndi zabwino kupopera mbewu mankhwalawa ndi mpweya wotentha.
Ufa wa dzira mu mawonekedwe owuma, amasungidwa motalika kuposa mazira, samapanga zinyalala, zosavuta kusunga, amasunga physico-mankhwala a mazira ndipo ndi otsika mtengo.
Ufa wa dzira nthawi zambiri umapezeka mu mkate ndi pasitala (!), zophikira ndi confectionery mankhwala, sauces ndi mayonesi, pates ndi mkaka.
Ngakhale kuti opanga mazira a ufa amanena kuti ndi otetezeka kuposa mazira ndipo alibe salmonella, nthawi zina amapezeka kuti atengeka ndi mankhwalawa ndi mabakiteriyawa.
nsomba chulukitsani ndi liwiro lodabwitsa kunja kwa firiji, makamaka pa 20-42 ° C. Zabwino kwambiri kwa iwo ndi malo ofunda, ofunda.
Zizindikiro za salmonellosis sizingawonekere, kapena zitha kuwoneka pambuyo pa maola 12-36: mutu, kupweteka m'mimba, kusanza, kutentha thupi, kutsekula m'mimba, zomwe zingayambitse kutaya madzi m'thupi. Matendawa amatha kukhala nyamakazi.