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<p>[QUOTE=&quot;Rec, post: 2790560, member: 6899&quot;]Yes and no.</p><p>Yes; because a dead air bubble may form during the first baking process. After the initial firing process, the vase can be re-fired after decorating and that would place the dead air bubbles under a new glass layer.</p><p><br /></p><p>No; because the black color we see in this vase could not arise if the dead air bubbles were covered with a new layer of glaze shortly after the first firing. The black color in the bubbles indicates that these bubbles would have been in contact with air and other natural elements for a long time.</p><p><br /></p><p>almost forgotten. i dont think the bubbles are on the surface. if we can get a 50X pic we porbabbly clearly see all bubbles are covered under an unaffected glaze[/QUOTE]</p><p><br /></p>

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