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Glazed Inside

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Okay. Is it "okay" (safe) to leave outside surface unglazed and the inside surface glaze? Since it is stoneware and porcelain mixture i would think that it okay since it is vitrified (i did the vitrification test and it has >1%) and i thought the only purpose of glaze was to protect the decoration. 

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I don't think that is a problem, personally. The pots if fired to temperature should work without a glaze, but a glaze makes things easier to clean, feel better to the touch especially around the lips, and deepens the surface. However, if for aesthetic reasons you with to leave a surface unglazed as in the outside, go for it.

 

Oh and I did delete the second posting of this query.

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Even though the ware is vitrified, it can still collect skin oil, cooking oil, stains on the unglazed surface. Over time, even with washing, this might make the outer surface unsightly. It is also possible for bacteria to inhabit the little micro pores in the surface. For the most part though, if it is really smooth, it can be kept sanitary.

 

You might try the "sharpie" test. Take a sharpie marker and draw on one of your culls, then see what it takes to remove those marks. Sometimes it's surprising how porous, non porous surfaces can be.

 

Lee

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