Thaum yuav cov khob yas, ua raws li txoj cai "saib, tsw, thiab nyem": lub khob ua raws li yuav tsum tsis muaj cov xim dub lossis cov khoom tsis huv, thiab nws cov ntawv cim npe - suav nrog cov khoom npe, cov khoom siv, cov qauv siv, hnub tsim khoom, npe chaw tsim khoom, thiab chaw nyob - yuav tsum meej thiab ua tiav; nws yuav tsum tsis muaj ntxhiab tsw phem; thiab nws yuav tsum tsis txhob deform yooj yim thaum nyem. Cov neeg tau txais kev pab tau qhia kom yuav cov khoom tsim los ntawm cov tuam txhab muaj npe nrov los ntawm cov kev raug cai. Ua tib zoo saib xyuas cov khoom siv tshwj xeeb thiab tsis txhob yuav PC (polycarbonate) khob rau cov menyuam mos los yog menyuam yaus; Tsis tas li ntawd, xyuas tias gaskets thiab straws yog ua los ntawm silicone es tsis yog PVC. Ceev faj nrog cov khob ua lag luam raws li "biodegradable," raws li qee cov tuam txhab sib xyaw tsis yog - biodegradable PP (polypropylene) yas rau hauv cov hmoov txhuv nplej siab -raws li lossis lwm yam khoom siv biodegradable los txiav nqi, txhais tau tias cov khoom tsis tuaj yeem ua tiav biodegrade. Koj tuaj yeem xa mus rau tus lej lej nyob hauv qab ntawm lub khob: piv txwv li, Tsis yog . 5 (PP) muaj cov cua sov zoo, qhov tsis muaj . 1 (PET) yog cua sov- tiv taus tsuas yog 65℃thiab haum rau cov dej txias xwb.
