1. Rau qhov kev ua cov khoom siv raw thawj zaug, los ntawm kev txiav, tsoo, tshuaj ntsuam thiab lwm yam, los nqa tawm qhov hnyav ntawm qhov ua ntej pov tseg, lub pob khoom me;

2. Raws li cov txheej txheem sib txawv, xaiv cov txheej txheem sib txawv ntawm kev rho tawm siab (kev rho tawm cov khoom los ntawm txoj kev uas cov khoom sib txawv), los ntawm ntau qhov kev rho tawm kom tau txais cov khoom xyaw xav tau;

3. Cov khoom siv slag los ntawm kev dai tawb lossis txoj kev pov tseg rotary, sau cov khoom seem;

4. Tom qab rho tawm cov lim dej thawj zaug, los ntawm kev cua sov txias, centrifugal rov kho dua, tau txais cov kua rho tawm;

5. Extract los ntawm qhov kub tsawg concentration, kua sib cais, kua solvent sib cais, high density, high concentration ntawm concentrate;

6. Ua tib zoo mloog los ntawm kev xa tawm ntawm cov tshuaj tiv thaiv, cov kav dej txiav, kev xa tawm ntawm kev ua kom tsis muaj menyuam, nkag mus rau cov khoom nruab nrab;

7. Nruab nrab los ntawm kev sau, tua kab mob, nkag mus rau cov khoom ua kua; lossis los ntawm kev ziab, sib tsoo, thiab lwm yam.

8. Cov khoom siv tseem ceeb siv cov thev naus laus zis siab heev, ceev ceev, muaj zog hloov kho tau, cov khoom zoo;

9. Tag nrho cov txheej txheem kaw, pa dej, dej kub, cov kuab tshuaj organic rov ua dua tshiab, txuag hluav taws xob, ua haujlwm tau zoo, ntsuab, kev tiv thaiv ib puag ncig raws li kev txhim kho thoob ntiaj teb;