1.Kad parastie patērētāji izvēlies a vienreizlietojamais papīrs pusdienas kaste, pirmais lieta to apsver ir ir spiedes stiprība of the papīrs bļoda
Vai tas mainās kad karsts un tvaicēšana ēdiens ir ielādēts! Vienkāršākais metode is to pinch the wall of the paper bowl with your hand. If the thickness of the wall is appropriateable and it is not easy deformed when pinched, you can choose to purchase it.
2. Tas atkarīgs no fluorescence veiktspēja of the papīrs bļoda
At home, we can use the purple light used for banknote verification to illuminate. Optical brightener is not allowed to be add to food paper. If Optical brightener is exposed, this paper bowl will be unqualified! Of course, if you don't have a purple light at home, you can use A4 printing paper for comparison. If you buy a paper bowl that is as snow-white as A4 paper, or even whiter than A4 paper, it may be a bit problemproblematic. At this point, rush up and buy a purple light to illuminate it, or send it to a professional testing agency for testing.