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Hard anodising was first developed by Russian scientists to produce
a metal surface tough enough for space travel. The same technology
is now used by Hawkins to make its Hard Anodised pressure cookers
and cookware. Through a process of electrolysis at sub-zero temperature
using a high intensity electric current, a 60 micron thick layer of
aluminium oxide (Al2O3) is formed molecule by molecule as an integral
part of the metal. This process produces a surface harder than steel
with wonderful properties for cooking.
The Hard Anodised surface is non-toxic, non-staining and non-reactive with foods. It is thermal-efficient, heats fast and evenly and is not spoiled by high heat. It is tough and durable, will not tarnish or corrode and will stay looking new for years.