This is probably the number one question we get, and the simple answer is no. It's possible to put 10 pounds of greasy beef in the middle of the Flat Top and walk away and grease would probably run off the front. However, thousands of meals ranging from burgers and bacon to piles of vegetables for fajitas and stir-fry and have been cooked on Flat Tops and it's never had an issue.
The enormous surface area of the Flat Top allows grease to spread very thin instead of pooling up like it would in a smaller skillet or pan. This prevents the grease from flowing freely around the cooking area.
The front of the Flat Top also develops a very slight bow when heated to make it even more difficult for liquid to flow freely to the front of the Flat Top.
A final factor is making sure your stove is level so liquid will spread evenly rather than running one direction or another. Honestly, your stove should be level to work its best with any pot or pan so it's worth checking anyway!
People have asked us why the flat is front in the first place. We did a lot of design work on this product and tried to combine the best parts of a regular skillet and a traditional griddle. Having the flat front promotes airflow to keep food from getting too moist and mushy. It's the magic that makes crispy hash browns so hard from getting soggy in a regular skillet.