Mudslinger Ceramics Posted August 14, 2013 Report Share Posted August 14, 2013 Hi I've very recently unpacked a wet bin load of old bisque in old newspapers that has sat in a celler for 9 years. The pots had the most outstanding green, black or white moulds growing on them!!! All went into 2 big bisque firings at Cone 06 and all but one look great again, several are in a glaze fire now. The odd one looks a bit discoloured but that is probably with a smear of slip. I was experimenting with slip for a while and figure I packed this one without a good clean first....but... I have an opaque satin black I want to test so this little pot will be it! My vote is bisque again to Cone 06. Irene Link to comment Share on other sites More sharing options...
Idaho Potter Posted August 14, 2013 Report Share Posted August 14, 2013 I usually bisque to cone 04, so that's probably what I did with those old pots. Shirley Link to comment Share on other sites More sharing options...
joshur Posted August 15, 2013 Report Share Posted August 15, 2013 It is just mold, if it were mine and I wanted to be sure I got the best possible results, I would re bisque and then blow off the residue. I have done that before with pieces that have sat for 30 years, it is amazing the amount of organic and other buildup that happens over time. Last year I fired a large electric kiln that had sat for 15 to 20 years, it smoked quite a bit from all the organic material that had grown in the kiln. Link to comment Share on other sites More sharing options...
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