Kutsekereza nthunzi ndikuyika mankhwalawo mu kabati yotsekereza. Nthunzi yotentha kwambiri imatulutsa nyenyezi zotentha, zomwe zimapangitsa kuti puloteni ya bakiteriya iwundane ndikupangitsa kuti ikwaniritse cholinga chotsekereza. Makhalidwe a sterilization yoyera ndi kulowa mwamphamvu. Mapuloteni ndi ma protoplasmic colloids amapangidwa ndi denatured ndikulumikizana ndi kutentha komanso chinyezi. Dongosolo la enzyme limawonongeka mosavuta. Nthunzi imalowa m'maselo ndi kulowa m'madzi, zomwe zimatha kutulutsa kutentha komwe kungawonjezere kutentha ndikuwonjezera mphamvu yotseketsa.
Zida za jenereta za Steam: kutentha kwambiri komanso kutseketsa kwakanthawi kochepa. Pogwiritsa ntchito kayendedwe ka madzi potsekereza, madzi mu thanki yotseketsa amatenthedwa mpaka kutentha kofunikira kuti atseke pasadakhale, potero amafupikitsa nthawi yotseketsa ndikuwongolera magwiridwe antchito. Sungani mphamvu ndikuwonjezera kupanga. Sing'anga yogwirira ntchito yomwe imagwiritsidwa ntchito poletsa kutsekereza imatha kubwezeretsedwanso, kupulumutsa mphamvu, nthawi ndi kugwiritsa ntchito mphamvu za anthu ndi zinthu zakuthupi, ndikuchepetsa ndalama zopangira. Panthawi yotseketsa, akasinja awiriwa amagwiritsidwa ntchito mosinthana ngati akasinja otsekereza, omwe amawonjezera kutulutsa nthawi imodzi. Pazonyamula zosinthika, makamaka zolongedza zochulukirapo, liwiro lolowera kutentha limakhala lachangu komanso mphamvu yotseketsa ndi yabwino.