AndreaB Posted February 17, 2016 Report Share Posted February 17, 2016 I know that high fire stone ware is oven safe and dishwasher safe, but is it microwave safe? Link to comment Share on other sites More sharing options...
bciskepottery Posted February 17, 2016 Report Share Posted February 17, 2016 If fired to maturity and vitrified, yes. I'd be more concerned about glazes than clay body. Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted February 17, 2016 Report Share Posted February 17, 2016 I think the lower the porosity of your clay the more 'microwave safe' it is because if it has no water in there it can't heat it up. Still I have never had anything go pop in the microwave. just get really really hot. Link to comment Share on other sites More sharing options...
Benzine Posted February 17, 2016 Report Share Posted February 17, 2016 Ditto to what High Bridge said. i've even used low fire wares in the microwave, and no issues, other than getting hot. To be fair, so do the commercially bought wares I microwave too. But as mentioned, the more porous something is, the more water it will absorb. Heat something in the microwave that was soaking in the sink, not long before, and you might have an issue. It would be fun to test, if I didn't value my microwave... Link to comment Share on other sites More sharing options...
Guest JBaymore Posted February 17, 2016 Report Share Posted February 17, 2016 There is a specific accepted protocol for testing if something is labeled "Microwave Safe". If you don't follow this protocol here in the USA... I'd be careful of formally labeling ceramic wares as "Microwave Safe". Maybe more like "Can be used in a microwave". http://www.astm.org/Standards/C1607.htm best, ......................john Link to comment Share on other sites More sharing options...
karnemo Posted April 30, 2016 Report Share Posted April 30, 2016 Speaking of safety, I am looking to purchase a small amount of FDA-safe adhesive/epoxy, which I would use not to seal a small hole in a food vessel, and later for other fixes that come up. What products of this type have you found, and where? Thank you! Link to comment Share on other sites More sharing options...
oldlady Posted May 1, 2016 Report Share Posted May 1, 2016 i am posting 3 pictures of what happened to the " freezer to oven, microwave oven, dishwasher safe" china that a family member put into the microwave to reheat dinner. photos are out of line, look at the last one for the concentric rings that happened immediately. disregard the chip. this plate sits at the bottom of the stack and if a crowd is here, it is mine.i also took a photo of a salad plate with the same sad history. this is why i microwave only on Corelle by Corning. Link to comment Share on other sites More sharing options...
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