Qhov kev tsim muaj muaj cov acid, anhydrous citric acid thiab nicotine citric acid, itherine citric acid, itherine citric acid, itherine citriced ntawm 1: 0.52: 23 kom tau txais cov khoom; Cov phiaj xwm npaj muaj cov kauj ruam hauv qab no:
S1: Npaj cov ntaub ntawv raw;
S2: cua sov tawm tsam, nchuav cov khoom nyoos rau hauv reactor (1), cua sov kom 100-1Cring rau 50-70 feeb;
S3: Cua txias mus rau chav sov, hnyav, thiab ntxiv propylene glycole glycole;
S4: cua sov lub reactor (1) txog 80-100 degree, nplawm rau 30-60 feeb;
S5: Thaum kawg tau txais cov khoom lag luam nicotine ntsev, thiab khaws cia ntawm qhov kub tsawg thiab deb ntawm lub teeb. Qhov muaj pes tsawg leeg ntawm kev tsim muaj zoo, lub caj pas tsis muaj zog ntaus, txoj kev nkag siab, thiab muaj kev txob txob qis, yog li yeej cov neeg siv khoom. Cov qauv npaj muaj qhov zoo ntawm kev npaj khoom noj muaj txiaj ntsig, ua kom muaj cov khoom siv tau zoo, ua kom muaj qhov tsis zoo tib neeg, thiab ua kom muaj cov khoom lag luam zoo.