1.Txhua lub hnab ntim kas fes yuav tsum tsis muaj cov khoom siv kas fes ntxiv lossis cov tawb lim. Txhua yam koj xav tau yog lub khob dej kub thiab ib lub hnab ntim kas fes kom tiav cov txheej txheem brewing, uas yooj yim thiab nrawm.2.hygiene: dai
Pla, los yog polylactic acid, yog cov khoom siv biodegradable muab tau los ntawm cov nroj tsuag, feem ntau pob kws. Nws tau sai sai tau txais cov koob meej hauv kev lag luam ntau yam, tshwj xeeb hauv kev ntim khoom thiab daim ntawv cim npe. Qhov no yog vim nws qhov tshwj xeeb ua ke ntawm Susta