On Fri, 21 Sep 2012 09:27:40 -0500, Tomct
> wrote:

>
>It's been awhile since anyone posted on this subject, but last night I
>was canning some tomatoes, and when it was time to take the jars out of
>the water bath, I noticed a piece of tomato floating on the top of the
>water. I thought nothing of it, just that I had somehow dropped a piece
>in there, but as I was removing the first jar, the top 2/3 of one of the
>jars broke away from the bottom. What a mess it made in the water!
>Today I noticed that the jar was an Atlas Mason jar, and since all our
>other jars are Ball jars, I googled Altas Mason Jars and found this
>site.
>
>Though I haven't had a chance to look around, I thought I'd update the
>thread, and provide a "living example" of why maybe it's not such a good
>idea to use these jars. I'm guessing it somehow made it's way from a
>jar of spaghetti to our jar storage, bypassing what should have been the
>recycling bin!!

I see I was one of the guest responders in your linked thread on this
subject, back on Oct. 16, 2009 (different ISP at that time).
I would venture an educated guess that since that time we have BWB'd
well over 200 jars of tomatoes in Atlas (Classico) jars.
As a matter of fact, I just took a break from doing tomatoes this
morning to read the NG while one load is in the canner. This is pretty
well the end the year's tomato crop but, by the time we finish later
today this season's total alone will be over 50 of the Atlas jars plus
more than 20 quart (or liter) jars.
Never had a jar break and seal failures would be less than 1%.
For the two of us, Atlas jars are the perfect size.
Ross.
Southern Ontario, Canada