Preagan Posted November 24, 2016 Report Share Posted November 24, 2016 I have a few boxes of cones that are over 5 years old, do these "expire"? They have been stored in an unheated building. Link to comment Share on other sites More sharing options...
Mark C. Posted November 24, 2016 Report Share Posted November 24, 2016 I have some from the 50's and work fine (they where given to me by my mentor-who is long gone)The boxes are ones you would not recognize as is the packing material.The early ones are in sawdust the later ones in vermiculite then the new ones in foam sheets. The new cones are moire colorful as well. My old cone 11 large are white all new cone 11 large are blue-they added colors some years back. Cones last many many decades as long as you KEEP THEM DRY. moisture will ruin them They never expire Now get to coning-always wanted to say that If you need to check expiration dates look at your milk Link to comment Share on other sites More sharing options...
Chris Campbell Posted November 24, 2016 Report Share Posted November 24, 2016 Glad to hear that Mark .., I have some that are decades old and for the life of me I cannot figure out why I thought I needed those temps?? Have never even opened the boxes. Do we just go slightly mad in pottery stores?? Link to comment Share on other sites More sharing options...
glazenerd Posted November 24, 2016 Report Share Posted November 24, 2016 I have boxes and boxes of them that went bad. I sat them in the kiln for safe keeping, now they are all bent over- strange. Nerd Link to comment Share on other sites More sharing options...
Preagan Posted November 24, 2016 Author Report Share Posted November 24, 2016 Thanks all! Chris, I think you are right. I live near Arrowmont School. When I go to their art supplies store I am in heaven on entry and much poorer when I leave! I'll take that kind of crazy any day. I promise to only store 3 of my cones in the kiln at one time Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 24, 2016 Report Share Posted November 24, 2016 I have some very old ones are packed in sawdust. They are fine. Marcia Link to comment Share on other sites More sharing options...
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