Does this warmer cook food or only keep it hot?

It only holds food at serving temperature. Cook dishes first, then load them hot; the 1200 W element and adjustable control maintain heat rather than raise it.

How many pans does it hold?

Five. Each pan is separate, so you can run different dishes side by side and pull one out without disturbing the others.

Can I set different temperatures for each pan?

No. The adjustable temperature control sets one heat level for the unit, so all five pans run at the same setting.

Is it suitable for a home kitchen?

Yes, if you regularly serve several dishes at once. Its 9.8-inch height and countertop footprint suit a sideboard or kitchen island, and it needs a standard outlet nearby.

The body is stainless steel in a silver-gray finish. It resists rust and wipes clean, though it shows smudges.

Do I need to add water?

Follow the unit's own instructions for water in the base, if it calls for any. Never let pans run dry with food in them, as dishes will dry out and scorch.