Lub raj mis dej rau kev ua si nawv

 

Ceramic mug

 

Vim nws qhov siab thiab lub peev xwm loj, txhua tus nyiam siv nws ua lub khob haus txhua hnub.

Tab sis qhov tseeb, qee cov mugs ua los ntawm kev cob qhia me me los yog xuas tes ua tuaj yeem ua rau nag lossis daus.

Mugs yog ua los ntawm ceramics. Hauv cov txheej txheem glazing, qee qhov glazes muaj cov hlau lead hnyav.

Yog tias qhov kub tsis siab txaus thaum lub sijhawm tua hluav taws, cov hlau hnyav yuav nyob twj ywm.

Tam sim no feem ntau cov chaw tsim khoom loj tsis tu ncua tau tshem tawm cov hlau hnyav hauv cov ntaub ntawv ntawm cov kauj ruam no, tab sis nws yuav nyuaj rau lav rau cov kev cob qhia me me.

 

Phau Ntawv Qhia Xaiv:

 

Sim mus yuav cov mugs ceramic ua los ntawm cov chaw tsim khoom loj nrog cov cim npe, thiab tsis txhob "tes ua" ceramic mugs nrog cov qauv zoo nkauj ntawm cov phab ntsa hauv dej.

Muaj lwm qhov txawv ntawm lub khob ceramic - unglazed stoneware khob. Lub qhov dej zoo-paub cov av nplaum nplaum tiag tiag yog cov khoom siv pob zeb no.

Vim tias nws tsis yog glazed, muaj cov hauv paus tsis muaj tshuaj lom xws li cov hlau hnyav.

Tab sis qhov tsis zoo yog tias khob stoneware yeej nyuaj rau txhuam piv rau glazed ceramic khob.

 

Enamel khob

 

Enamel mug yog ib lub khob hlau nrog txheej txheej los npog cov hlau tsis muaj zog ntawm kev ua tau yooj yim oxidized.

Yog tias cov txheej txheem poob, cov hlau sab hauv yuav raug nthuav tawm.

Hlau yooj yim reacts nrog acid thiab alkali kua thiab kuj yuav yooj yim xeb.

 

Phau Ntawv Qhia Xaiv:

 

Zoo li ceramic mugs, sim yuav ib qho nrog phau ntawv qhia meej los ua pov thawj tias nws yog tsim los ntawm kev tsim nyog, thiab xaiv ib qho uas tsis muaj qauv ntawm phab ntsa sab hauv.

Tsis tas li ntawd, vim nws yog ua los ntawm hlau, tsis txhob muab tso rau hauv lub qhov cub microwave.