Owner Manual

Take care to avoid strikes, dropping heavy objects into the sink, and not using utensils which can scratch the
surface. Also, avoid contact with chemicals, metal products and metal brushes. Do not leave tomato residue,
milk or coffee on the sink for an extended period of time. Avoid metal cans with wet bottoms, and iron
objects in general, including cleaning sponges with iron wool. Please note that long contact of any of the
above mentioned substances with the sink can start an electrochemical corrosive attack, even though very
mild. (* Note: Steel Clean is available on ROHL’s website.)
Are there any common substances that should be avoided for Stainless Steel?
Prolonged contact with such common items as tomato residue, salty liquids, milk, coffee, and cola can start
an electrochemical corrosive attack, even though very mild. The process of electrochemical corrosive attack
would typically leave brownish circular marks on the surface, which are usually very small to start with (less
than 1 mm); but if the process is allowed to continue (i.e. if the metal or acid that has triggered the process is
not removed from the surface) it may grow to a few millimeters in diameter. The spots have an aspect akin to
rust, but are not formed by iron oxide, but rather caused by the molecular modifications of the chrome
superficial layer of the steel.
Always wash the sink with water and soap or dish soap after use, and thoroughly rinse and dry with a cloth.
What about scratches?
Stainless Steel can be scratched. The potential for scratching is not unique to ROHL stainless steel products
but is characteristic of any such material. The use of a bottom grid, as well as, taking normal care during the
use of the sink, will limit the scratches to the usual fine crisscrossing that becomes a mark of the life of the
product itself.
Avoid dragging heavy pots and pans, especially cast-iron ones, on the bottom of the sink as this may cause
deeper scratches. In general, please avoid the use of rough bottom pots and pans, sharp cutlery, and other
hard edge materials without the protection of a sink grid.
What about fingerprints?
On stainless steel, which is a smooth and more or less shiny material, the fingerprints show rather
prominently. However, on Rohl sinks, thanks to the distinctive, smoother finish, it is much easier to remove
prints compared to other sinks which have a rougher polish. The microfiber cloths supplied with the sink are
sufficient to eliminate the fingerprints, without using water or other detergents.