The rainbow effect is due to heating. When drawing the temper on any steel, the color of the rainbow can be used to determine the temperature of the draw starting with a straw or golden color and going to purple. With a uniform temperature , you get solid colors. Stove top heating isn't uniform. The effect shows up better on stainless due to a better contrast. Artists in my neighborhood who make stainless steel sculptures use that effect to color their work. Solid colors are done in a big oven, while non solid colors are done with a torch and look like they were painted on. The coloring does not affect the integrity of the steel though some oxidation of the surface is likely. Were it a high carbon heat treatable steel that had been heated to critical and quenched to harden it, the purple areas would be drawn softer than the golden areas.
Iron is not generally a health problem. In most of it's forms, it's not very bioavailable. The well water around here is sometimes brown with iron and has caused no problems in all the hundreds of years of people drinking it ...except for staining the laundry and sinks etc and tasting nasty. Various compounds of chromium as found in chrome plating baths can be very poisonous but the chromium in stainless steel is locked up in the iron really well and not likely to make those compounds. Both nickle and chromium are highly resistant to making spontaneous compounds which is why they are used to make stainless steel stainless and plated over steel to prevent corrosion. Ode At 09:04 AM 10/31/2004 -0700, you wrote: > That was a concern for me with enamel pans too. They also get quite >large chips, and I wondered if the edges and cracks of those chips would >not be continually fracturing off tiny shards of glass. Plus at the >point they are cracked or chipped I assume the metal underneath (what is >it?) would be leaching. > Le Creuset was mentioned, but all I have seen in that for years is >teflon coated. Perhaps anodized aluminum is the way to go? >Aluminum despite concerns in recent decades was at one time thought to >be a "pass through" metal, anything leached into food was just excreted. >Plus, as Ken said, aluminum is not avoidable as it is one of the most >common metals on earth. > I do have some SS pans with the "rainbow", so I would really like to >know if it in fact does mean the metal is leaching more than it would >otherwise------and since I am allergic to nickel, am wondering if I am >getting enough to be a problem that might possibly be making all my >other health issues worse. Trying to reconstruct when exactly I went to >SS pans.......never thought I'd need to remember that, god what I'd give >for a functioning memory! >sol > > >Tony Moody wrote: > >>I feel much happer using SS than enamel ware. The enamel >>develops tiny cracks in which germs lurk i am sure and also those >>tiny chips of glass have to go into the food. Right? >> >>Stainless steel in general does not lose surface unless abraded, so >>be gentle with it. I would guess that more nickel/chrome comes off >>the edge of knife and ends of fork tines than is 'cooked' off into the >>food in a stainless pot. >> >>Why not 'silver plate' the inside of your SS ware after cleaning it. Any >>methods out there? >> >>Tony >> >>On 29 Oct 2004 at 15:41, sol wrote: >> >> >> >>>So if I get this stuff and use it a couple months a year, do I still >>>have to throw out my brand new set of SS pans? >>>And here was me, thinking I was doing good by gradually getting rid of >>>aluminum pans over the years......... >>>sol >>> >>>twllLL wrote: >>> >>> >>> >>>>IP6 This stuff is suppose to chelate heavy metals from your body & >>>>lots of other stuff.Its made from rice bran extract. You don't need to >>>>take it all year long. >>>>Take it for a couple of months twice a year. >>>>Hulda Clark says SS gets into womens breast & causes >>>>breast cancer too. >>>> >>>> >>>> >>>> >>>-- >>>The Silver List is a moderated forum for discussing Colloidal Silver. >>> >>>Instructions for unsubscribing are posted at: http://silverlist.org >>> >>>To post, address your message to: silver-list@eskimo.com >>>Silver List archive: http://escribe.com/health/thesilverlist/index.html >>> >>>Address Off-Topic messages to: silver-off-topic-l...@eskimo.com >>>OT Archive: http://escribe.com/health/silverofftopiclist/index.html >>> >>>List maintainer: Mike Devour <mdev...@eskimo.com> >>> >>> >> >> >> >> >> >> > >
