Susan Hogarth wrote:
> My husband and I bought a Mirro a couple of months ago and just
> started working on canning with it (100+ tomato plants!!!). We are
> having an issue, though, that the release valve doesn't seem to 'rock'
> the way it is described in the manual, but instead does nothing for a
> minute or two then vents for 5-10 seconds continuously. We thought
> this was a defect, but this review on epinions talks about Mirro's
> service line saying this is normal:
>
> http://www.epinions.com/content_400848686724
>
> " The product must have changed since the other reviewers bought it.
> The instructions tell when to start timing the processing: "When
> control jiggles vigorously, reduce heat so that control rocks or
> jiggles gently."
> Guess what? The control has been changed so that it does not rock or
> jiggle at all.
>
> The instructions have not been updated. I found this out doing a test
> run. When the control would not move in the least bit, I called the
> customer service number listed. The tech told me, "Oh yeah, it doesn't
> rock, it just hisses. The instructions are wrong. Sorry about that." "
>
> I am going to call Mirro tomorrow, but is there any insight into this?
> Thanks!
>
> - Susan
>


I have a couple of old Mirro canners (a big and a little one), and a new
Presto. The Presto jiggles and the Mirros just hiss. Make sure your
stove is good and level, and turn the heat down once it starts so the
5-10-15 regulator disk doesn't hiss constantly (because it might jump up
too high and get stuck briefly, and you don't want the pressure to
fluctuate that much)

I actually like the Mirro canners better, but the hissing scares The
Wife*, and if I use the Presto at 10 or 11 pounds rather than 15 it is
silent -- I just have to keep my eye on the gauge. Since I do most of
my canning late at night, that was my excuse for buying the Presto --
plus it was on clearance sale so cheap it was hard to pass it up.

HTH, :-)
Bob

--
*gratuitous reference to upset Sheldon