Chiyambi: Kukwera kwa Matumba a Ziplock a PE mu Kusunga Chakudya Kwamakono
M'dziko lamakono lomwe likuyenda mofulumira, kusunga chakudya sikuti kungowonjezera nthawi yogwiritsira ntchito—ndi chizolowezi chofunikira kwambiri kuti munthu akhale ndi thanzi labwino komanso chitetezo. Kuyambira kukhitchini yotanganidwa ndi nyumba mpaka ku zochitika zakunja, njira zothetsera mavuto zomwe zimayenderana ndi zinthu zosavuta komanso zaukhondo zikufunidwa kwambiri.Matumba a ziplock a chakudya cha PE(matumba a polyethylene ziplock) aonekera ngati chisankho chabwino kwambiri cha mabanja ndi mafakitale azakudya, chifukwa cha zinthu zawo zapadera. Nkhaniyi ikufotokoza chifukwa chake PE imadziwika ngati "woteteza" pakusunga chakudya komanso phindu lake losayerekezeka.
Ubwino wa Zinthu za PE: Chitetezo ndi Magwiridwe Abwino Pamodzi
1.Satifiketi Yopanda Poizoni & Yovomerezeka ndi Chakudya
PE (polyethylene) ndiye pulasitiki yokhayo yomwe imagwiritsidwa ntchito kwambiri yovomerezedwa ndiFDA yokhudzana ndi chakudyaKapangidwe kake kokhazikika ka mamolekyulu kamaonetsetsa kuti kalibe zinthu zosungunulira pulasitiki, BPA, kapena mankhwala ena owopsa. Kaya mukusunga chakudya cha ana kapena supu zotenthetsera, matumba a PE samatulutsa poizoni, zomwe zimateteza kupanga mpaka kugwiritsa ntchito tsiku ndi tsiku.
2.Ukadaulo Wosindikiza Zigawo Zitatu
Matumba a PE ziplock ali ndi zipu yotsetsereka yokhala ndi patent komanso kutsekedwa kopangidwa ndi texture kwachitetezo chopanda mpweya, chosalowa madzi, komanso choletsa mabakiteriya:
- Zimaletsa mpweya kuti uchepetse kutentha kwa zipatso (monga kuletsa kufiira kwa zipatso).
- Imakana chinyezi kuti zinthu zouma zisamaume bwino.
- M'mbali mwake muli zomatira ziwiri, zimathandiza kuti musamawonongedwe ndi zinthu zina m'firiji.
3.Kukana Kutentha Kwambiri (-40°C mpaka 110°C)
Kusinthasintha kwa PE kumatsimikizira kudalirika m'mikhalidwe yovuta:
- Yotetezeka mufiriji: Yolimba ngakhale pa -40°C, imasunga nyama kwa miyezi itatu.
- Yosagwira kutentha: Chotetezeka mu microwave kuti chisungunuke (mphamvu yochepa/yapakatikati) kapena gwiritsani ntchito ngati gawo losalowa madzi pophikira mu sous-vide.
Kuyerekeza Zinthu: Chifukwa Chake PE Imapambana Njira Zina
| Zinthu Zofunika | Chitetezo | Mtengo | Milandu Yabwino Kwambiri Yogwiritsira Ntchito |
|---|---|---|---|
| PE | Si poizoni, ingagwiritsidwenso ntchito | $0.04-0.07/thumba | Kusunga tsiku ndi tsiku, kuzizira, kuyenda |
| PVC | Yochokera ku chlorine, yoopsa | $0.03-0.06/thumba | Zamakampani (zosakhala chakudya) |
| Silikoni | Otetezeka koma osavuta kuwononga | $0.70-1.10/thumba | Kuphika kotentha kwambiri, kugwiritsanso ntchito |
Dziwani: PVC ndi yoletsedwa ku EU chifukwa cha kutulutsidwa kwa dioxin.
