I think the reason no one has answered yet is because your question is a little confusing. Do you mean a steam canner like this?
http://www.amazon.com/Back-Basics-400A-7-Quart-Aluminum/dp/B0000DDUCJ
Or a steam juicer like this?
http://www.amazon.com/Victorio-Kitc...494838&sr=1-2&keywords=stainless+steam+juicer
If it's the juicer, I can't help as I haven't used one, but have heard great things about them. If it's the steam canner, the National Center for Home Food Preservation says they're not safe to use.
http://nchfp.uga.edu/how/general/equp_methods_not_.html
Well, that link won't work again for some reason, so here's what they said:
"Equipment and Methods Not Recommended
Steam canners are not recommended because processing times for use with current models have not been adequately researched. Because steam canners do not heat foods in the same manner as boiling-water canners, their use with boiling-water process times may result in spoilage."
They used to have a more detailed explanation than that, but this is the only one I could find.
Or, since you included WB in your description I did some more hunting and found this:
http://discountpressurecookers.brav...ter-bath-canner-with-home-canning-kit-reviews
I didn't even know such a thing existed until now, lol, sorry. If that's it, I think it would still fall back into the NCHFP's recommendations that steam canning isn't safe. It was popular back in the seventies (with a canner like the first link), and I know some people still do it, so you'd have to make your own informed decision. I myself definitely don't always agree with their standards. However, if you're a new canner I think I'd have to advise against it, sorry. Hope this helps.
