A CPET trays, kumbe Crystalline Polyethylene Terephthalate trays, i muxaka wa ku paka swakudya leswi endliweke kusuka eka muxaka wokarhi wa thermoplastic material. CPET yitiveka hiku tiya swinene eka mahiselo yale henhla nale hansi, leswi endlaka leswaku yiva nhlawulo lowu dumeke eka switirhisiwa swohambana hambana swaku paka swakudya.

A Ina, titreyi ta pulasitiki ta CPET ti nga oven. Tikota ku tiyisela mahiselo kusuka eka -40°C kuya eka 220°C (-40°F kuya eka 428°F), leswi pfumelelaka kutirhisiwa eka ti microwave ovens, ti ovens leti tolovelekeke, hambi kuri eka vuhlayiselo bya ayisi.

A Ku hambana lokukulu exikarhi ka titreyi ta CPET na titreyi ta PP (Polypropylene) i ku tiya ka tona hi ku hisa na swivumbeko swa swilo leswi tirhisiwaka. Ti trays ta CPET ti kondzelela ku hisa naswona tinga tirhisiwa eka ti microwave na ti ovens ta ntolovelo, kasi ti trays ta PP hi ntolovelo titirhisiwa eka switirhisiwa swa microwave kumbe vuhlayiselo byo titimela. CPET yinyika ku tiya ko antswa xikan’we naku tiya eka ku pandzeka, kasi ti PP trays ti olova swinene naswona minkarhi yin’wana tinga durha ngopfu.

Titreyi ta CPET ti tirhisiwa eka switirhisiwa swohambana hambana swo paka swakudya, kukatsa na swakudya leswi lulameleke, switirhisiwa swa bakery, swakudya leswinga titimela, na swin’wana leswi onhakaka leswi lavaka ku hisiwa nakambe kumbe ku swekiwa eka oven kumbe microwave.

CPET na PET hivumbirhi bya tona i tinxaka ta ti polyesters, kambe tina swivumbeko swohambana hikokwalaho ka swivumbeko swa tona swa molecular. CPET i xivumbeko xa crystalline xa PET, lexi nyikaka ku tlakuka ka rigidity xikan’we naku tiya ku antswa eka mahiselo yale henhla nale hansi. PET hi ntolovelo yitirhisiwa eka mabodlhela ya swakunwa, swibye swa swakudya, na switirhisiwa swin’wana swo paka leswinga laviki mpimo lowu fanaka wa ku tiyisela mahiselo. PET yi vonaka ngopfu, kasi CPET hi ntolovelo yiva opaque kumbe semi-transparent.