[. . . ] This new carefully designed product, manufactured with the highest quality materials, has been carefully tested to satisfy all your cooking demands. [. . . ] 1 - 2 - 3) Rotate the knob to the position correspondent to the needs of cooking taking into consideration that to a higher number a higher heat supply corresponds, see table "use of electric plates". "Quick and normal plates": clockwise and anticlockwise rotation with 7 fixed position (0÷6). Of electric plates, we advise receptacles with flat bottom having same diameter or lightly higher than that of the plate; - avoid overflows of liquid, therefore when boiling has happened or in any case when liquid is heated, reduce the heat supply; - don't leave the electrical plates on without receptacles on the top or with void pots and pans; - check that the central sensor of the automatic plate results sliding in its seat so that it's possible to rest freely the bottom of the pan; - at the end of cooking take again the knob to position "0". Before every operation it's necessary to disconnect the apparatus. To obtain a higher life of the apparatus concerned it's indispensable to carry out at regular intervals a carefully general cleaning bearing in mind the following: - the s/s and/or Enameled parts should be cleaned by means of suitable not abrasive or corrosive products (available on the market). ) - avoid leaving on the top acid or alkaline substances (vinegar, salt, lemon-juice, etc. [. . . ] We reserve the right to make on our own products those changes to be considered necessary or useful, without jeopardizing the essential characteristics. [. . . ]