Why does pottery craze

They will turn black or brown sitting between the crazed lines or on the porcelain body itself. Nearly inaccessible, bacteria enjoy this environment. You must recognize that regardless of the method you use to clean crazed china, it is no longer food safe. Thanks for the great information. I carry my pen and mini flashlight in my purse when I go shopping now. Thank you for this information! It certainly is a useful reference for teacup collectors like me.

Good to know all the bacteria is there. I made a mistake about the beautiful perfection comment…. However the crazing part is unfortunately not beautiful but does happen. Glad there are ways to handle the crazing. Ty for all your important information and how to take care of our tea cup collections.

I found this very interesting and have learned alot. Thank you. I love to collect teacups and this info will be very helpful. I also watched your live feed video and am really impressed with your honesty and commitment to your customers. Thanks for the interesting information on crazing.

I appreciate the info for my hoard of fine china! Why is it that crazing is often more evident on the underside of items and the top of the item, such as a bowl or plate may be crazing free? Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. Login 0 Items. What is Crazing? Jo Ann Hunter on October 7, at pm.

Jen on October 10, at pm. I never put my china in the dishwasher! Mifflin Ann Saavedra on October 10, at pm. Diane Marceau on October 7, at pm.

I think most people don't care for it simply because every piece I have bought has been priced SO low! So, I'll be curious to hear your opinion :o. This post contains some affiliate links for your convenience which means if you make a purchase after clicking a link I will earn a small commission which helps keep my blog up and running but it won't cost you a penny more!

Click here to read my full disclosure policy. You might also like some of my other guides to vintage items below:. Anthropomorphic Collectibles Guide. Gurley and Tavern Candles Collectibles Guide.

Copyright I love it when you share! Please keep in mind that all images and text on this site are property of Little Vintage Cottage. Feel free to use one or two photos provided that a link back to my original post is included. Please do not remove any watermarks, crop, or edit any of my images without first obtaining written permission from me. This type of crazing shows up weeks or months later and may be caused by underfiring.

When moisture is introduced to the clay body through stilt holes, expansion and contraction of the clay body can also cause crazing. Therefore handwashing pieces as opposed to constant dishwasher use may the preferred method with functional low fire ceramic ware.

This would not be the case with stoneware when it has been fired to its proper maturity because the clay body will not be as porous as low fire pieces. E-Mail Us! American Ceramic Supply Company, Inc. The Pottery Consultant copyright - - all rights reserved.