Best food warmers for keeping food warm at home under $100

Top pick: the Food Warming Mat — a big 23.6" x 15.75" surface that holds several dishes at once, four heat modes, and it can stay warm for up to 12 hours with a 4-hour auto shut-off. The strongest ratings of the bunch, and the easiest way to keep a whole dinner warm without cords and trays everywhere.

Who the others suit:

• Chefman Glasstop Warming Tray — a compact, familiar tray with simple high/medium/low dial; best if you only need to hold one or two dishes.
• Noahstrong or GOLDLEMON warming mats — budget rollable silicone mats that store flat; good for small kitchens and occasional use.
• Foldable Food Warming Mat — folds down thin and light, with three set temperatures; the pick if you want to tuck it in a drawer.
• MegaChef Buffet Server with 5 trays — for serving a spread where each dish needs its own compartment.
• Disposable chafing dish sets — for a party or holiday meal you'd rather not wash up after.
• Dash Hot2Go / electric lunchboxes — single portions, not a table of food.

One thing to weigh: mats and trays keep food warm, not hot enough to cook it, so start with food already at serving temperature.