Poly(ethylene terephthalate) (PET)ndi chinthu chopakidwa chomwe chimagwiritsidwa ntchito kwambiri ndi makampani opanga zakudya ndi zakumwa; chifukwa chake, kukhazikika kwake kutentha kwaphunziridwa ndi ofufuza ambiri. Ena mwa maphunzirowa agogomezera kwambiri kupanga acetaldehyde (AA). Kupezeka kwa AA mkati mwa zinthu za PET n'kodetsa nkhawa chifukwa kumakhala ndi kutentha kwa chipinda (21_C) kapena kutsika. Kusinthasintha kwa kutentha kumeneku kudzalola kuti ifalikire kuchokera ku PET kupita mumlengalenga kapena chinthu chilichonse chomwe chili mkati mwa chidebe. Kufalikira kwa AA m'zinthu zambiri kuyenera kuchepetsedwa, popeza kukoma/fungo la AA lodziwika bwino limadziwika kuti limakhudza kukoma kwa zakumwa ndi zakudya zina zomwe zapakidwa. Pali njira zingapo zomwe zanenedwa zochepetsera kuchuluka kwa AA komwe kumapangidwa panthawi yosungunuka ndi kukonza PET. Njira imodzi ndikukonza bwino momwe zinthu zopangira PET zimapangidwira. Zosinthazi, zomwe zimaphatikizapo kutentha kosungunuka, nthawi yokhalamo, ndi kuchuluka kwa kudulidwa, zawonetsedwa kuti zimakhudza kwambiri kupanga AA. Njira yachiwiri ndikugwiritsa ntchito ma resin a PET omwe adapangidwa mwapadera kuti achepetse kupanga AA panthawi yopanga zidebe. Ma resin awa amadziwika kuti ''ma resin a PET a grade water''. Njira yachitatu ndiyo kugwiritsa ntchito zowonjezera zomwe zimadziwika kuti acetaldehyde scavenging agents.

Zotsukira za AA zimapangidwa kuti zigwirizane ndi AA iliyonse yomwe imapangidwa panthawi yokonza PET. Zotsukira izi sizichepetsa kuwonongeka kwa PET kapena kupanga acetaldehyde. Komabe, zimatha kuchepetsa kuchuluka kwa AA komwe kumatha kufalikira kuchokera mu chidebe motero kuchepetsa zotsatira zilizonse pa zomwe zili m'matumba. Kuyanjana kwa zotsukira ndi AA kumaganiziridwa kuti kumachitika malinga ndi njira zitatu zosiyana, kutengera kapangidwe ka molekyulu ya chotsukiracho. Mtundu woyamba wa njira yotsukira ndi momwe mankhwala amachitira. Pankhaniyi, AA ndi chotsukiracho zimachitapo kanthu kuti zipange mgwirizano wa mankhwala, ndikupanga chinthu chimodzi chatsopano. Mu mtundu wachiwiri wa njira yotsukira, chophatikizira chimapangidwa. Izi zimachitika pamene AA ilowa mkati mwa chotsukiracho ndipo imasungidwa ndi hydrogen bonding, zomwe zimapangitsa kuti pakhale zovuta ziwiri zosiyana zolumikizidwa pogwiritsa ntchito ma bond achiwiri a mankhwala. Mtundu wachitatu wa njira yotsukira umaphatikizapo kusintha kwa AA kukhala mtundu wina wa mankhwala kudzera mu kulumikizana kwake ndi chothandizira. Kusintha kwa AA kukhala mankhwala ena, monga acetic acid, kungawonjezere kutentha kwa mlendoyo motero kumachepetsa mphamvu yake yosinthira kukoma kwa chakudya kapena chakumwa chomwe chapakidwa m'mabokosi.