Tuesday, March 13, 2012

Pyrex dishes MUST READ

From: Dennis E.
Sent: March 13, 2012
To: undisclosed recipients
Subject: Fw: Pyrex dishes MUST READ

Pyrex dishes

Got any new Pyrex dishes? This is a must read.
I Checked at Wal- Mart and all the warnings are there. About 5:30 PM there was a loud bang from the oven. Sylvia opened the oven door and the Pyrex dish had shattered into a million pieces. 


The roast beef (our first in many months) was peppered with small shards of very sharp glass. Normally, I am quick to inform Sylvia she did something stupid. However, this time she was nowhere near the stove when it blew. I shoveled the glass and the now mashed potatoes into a bucket with two putty knives. I then sucked the remains with the shop vac. I let everything cool down and then scrubbed the oven with Simple Green and some hot soapy water. It took over an hour to clean up the goo. Upon completion I ran the oven empty to see if the temperature controller was working okay. I suspected the oven got too hot and the dish simply blew. This was not the case however. The oven came up to temperature and cycled normally. We threw a disgusting frozen pizza in the oven and it cooked okay. What is going on?

I Googled exploding Pyrex dishes and got ten million hits.
Exploding Pyrex is very common.
Here is the story: . A long, long time ago in a country we all know and love was a company named Corning. They made Pyrex dishes. The material they used is called borosilicate glass. This stuff is indestructible. But like everything else, the Bottom Liners had a great idea: sell the technology to another company. TheChinese discovered that using soda lime glass was almost as good as borosilicate glass and a lot cheaper. Today, Wal-Mart is the largest distributor of Pyrex products. Corning not only sold the technology to a company called World Kitchen, they also sold the rights to t he original Pyrex logo. Seamless. The consumer will never know.

Now it seems people are getting hurt using 
soda lime Pyrex. We were lucky because the dish broke while the oven was closed and the damage was limited to the oven cavity. Others have been less fortunate. Some dishes explode when they are lifted from the heating rack in the oven with devastating results. Some people are heavily scarred. World Kitchen is in denial. They say that the dishes are another brand, not theirs. Contrary to their denials the victims usually have more than one of these dishes and the Pyrex logo is clearly visible.

If you buy a Pyrex dish beware. The label on the front says oven safe, freezer safe, microwave safe. The instructions on the back tell another story. You cannot move a soda lime Pyrex dish from the freezer to the ov en and expect it to survive. The fine print goes on and on about what you are not allowed to do with the Pyrex dish. The fine print has prevented World Kitchen from being sued because they have warned the consumer that their Pyrex dishes are junk from the get go. And they are the same price as the original Corning dishes. What a bunch of losers we all are for buying this crap.
What to do?
If you own borosilicate Pyrex dishes, no fear. They have to be more than 25 years old to be sure they are indeed Corning dishes. I am not sure if the old Pyrex dishes have anything stamped in them that indicates they are made by Corning. You may continue to use the soda lime dishes for holding stuff. Just do not attempt to roast or microwave with them as the hazard is very clear. The reason the soda lime dishes let go is that over time they develop micro-cracks. Once a few micro-cracks are present and once some liquid finds its way into the cracks you have the bomb situation. The liquid is like shoving a crowbar in the dish and pulling it apart. Super heated liquids expand rapidly and it is the Super heated liquids that force the soda lime glass to shatter into tens of thousands of shards.
Since Corning no longer makes Pyrex and Sylvia proudly holds a large collection of the soda lime Pyrex, we decided that one bomb in the kitchen is enough. The Pyrex dishes will go bye-bye in this week's trash. I do not know what we will use for cake and pie dishes going forward. If you have some suggestions we are listening.

I strongly urge you not to use the soda lime Pyrex for the oven, stovetop or microwave. The slightest invisible crack is all it takes to have a mess and a possible injury.
As to World Kitchen: they and their cheap dishes. In case you are wondering: World Kitchenis not a USA company.
Check out the link below for more information:

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