|
Why
Stainless Steel?
Stainless
Steel is the medium that has caught everybodys interest
in the last 10 years. Trends in kitchen styles, the heightened
consumer interest in cooking as a hobby and increased awareness
of health issues and healthy cooking have all had an impact upon
the rising popularity of stainless steel consumer goods.
Stainless
Steel is beautiful, hygienic and durable - and lasts a lifetime.
Through
The Metal Maze
We
know that all that glistens is not gold, but do you know the
difference between the so-called "white" metals and
metal coatings seen in and around the home. Each one of these
shiny products has its advantages and disadvantages, but if your
knowledge of metals is a bit misty, here's a quick run down from
the Stainless Steel Appeal (SSA), an advisory service responsible
for promoting and educating the consumer on stainless steel,
to help you through the metal maze...
Chromium is an
element, often called "chrome", which is only found
as a very thin coating on other materials such as steel and plastics.
A thicker layer of nickel is applied beneath the chromium to
improve its adherence, surface finish and, when steel is the
substrate, its resistance to rusting.
It
is frequently used as an attractive finish for bathroom fittings
etc. but, remembering that its beauty is only skin deep, it should
not be used for items that will be subject to appreciable wear.
Once damaged, the coating cannot easily be repaired.
Silver
plating
has the rich, warm colour characteristic of solid silver but
tarnishes quickly in the air, requiring regular cleaning. It
doesn't rust but can, over years of cleaning, lose its silver
surface, exposing the base metal beneath. Popular silver plated
products include cutlery and tea services.
Zinc is another
metal mainly found as a coating, rather than as a solid metal,
although zinc alloy die-castings are still sometimes used for
door and window fittings. Zinc-coated or "galvanised"
steel products are usually strong but have a dull-grey appearance.
They are extensively used for utility products outdoors but never
used for cookware and have little, if any, utility in the kitchen
or on the dining room table. However, if grandmother's galvanised
washtub or bucket has survived, it will serve as a reminder of
a material once commonplace in early kitchens. A zinc finish
is sometimes seen in certain types of "wrought-iron"
look furniture.
Aluminium is normally
found as an alloy rather than as a pure metal. Its light weight
and excellent heat conductivity once made it a popular choice
for all kinds of cookware. Also, its surface can be highly polished
and can be further improved by a chemical process called "anodising",
which enables it to be coloured for aesthetic appeal. It has
the disadvantage of being soft and therefore easily dented. Also,
being a very reactive metal, it is easily attacked when used
to cook highly acidic foods such as rhubarb and many kinds of
fruit. Unfortunately, the anodised surface if applied is not
self-repairing so that, if scratched, any colouring is permanently
damaged.
Stainless
steel
- This year, stainless steel celebrates its 87th birthday (it
was invented by a man called Harry Brearley who, on August 20
1913 made his first cast of stainless steel), but despite being
a grandmother of a metal, this beautiful and durable high performance
material is still in its prime - enjoying more popularity today
than ever.
Stainless
steel is made from iron, carbon and chromium. Often nickel is
added to improve the corrosion resistance and formability. It's
stainless steel, not just on the outside but all the way through,
and resists attack from a wide range of acidic materials. It
is hygienic. It can be kept shiny and clean with little effort.
It is tough, highly resistant to dent or damage as a result of
daily wear and tear, and its protective oxide film is self healing
- should you scratch its surface the natural protective layer
will re-form immediately. Stainless steel products last a lifetime.
So
now you know the difference, go on, show your metal, but remember
- beware of imitations - all that glistens isn't always stainless
steel!
|