Things You'll Need
Liquid dish soap
The GE monogram is a professional gas cooktop featuring six burners and a built-in, non-stick griddle. Clean the griddle immediately after cooking on it. Food particles and oils are easily removed while the griddle is still hot. If you wait to clean the griddle until it has cooled, you will need to use soapy water. Soapy water removes the conditioning or seasoning layer on the griddle, so it will need to be reseasoned after cleaning, because reseasoning prevents food from sticking to the griddle.
Push a metal, square-edged spatula over the GE monogram griddle while it is still hot. This will remove food particles and residue.
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Rub a dry, coarse cloth over the warm griddle. This will remove oils, residue and leftover particles.
Fill a sink with a squirt of liquid dish soap and warm water. Dip a coarse cloth into the soapy water. Wipe away any residue remaining on the griddle. This method can be used if the griddle cooled before it was cleaned. This method should only be used as needed, because once soap is applied, the griddle must be reseasoned.
Rinse the coarse cloth in cool water, until the water running from the cloth is clear. Wipe the soap residue away from the griddle.
Reseason the griddle. Combine 1 qt. water with 1 cup white vinegar. Dip a paper towel into the solution. Wipe a thin, even layer over the griddle. Allow it to air dry. Brush 1 tbsp. vegetable shortening evenly over the surface of the griddle. Turn the control knob to 350 degrees Fahrenheit. Turn the griddle off once the oil begins to smoke. This should take almost 30 minutes. Repeat the vegetable shortening and heating process a second time. Once the griddle cools to room temperature, use a coarse cloth to wipe away excess oil from the griddle.