How to Take the Temperature of Ground Meat Patties: Side Insertion for Thin Patties

Why Is Thermometer Placement Different for Thin Patties?

Ground meat patties are thin compared to roasts or whole chickens, so the thermometer's sensing area can easily pass through the patty or rest too close to the surface. When that happens, you read the temperature of the pan or the air instead of the meat's true center, which can leave the patty undercooked or cause you to overcook it.

The safe internal temperature for ground meat—beef, pork, veal, and lamb—is 160°F (71°C), while ground poultry must reach 165°F (74°C). Because the patty is thin, the hottest part is the middle, and that is exactly where the thermometer tip needs to be. Side insertion is the most reliable way to hit that center without pushing the probe through the top and bottom surfaces.

A common mistake is inserting the thermometer from the top, which often tilts the probe and places the sensing tip near the surface. Side insertion lets you control the depth horizontally, so the tip stays in the thickest part of the patty for the entire reading.

How Do I Insert the Thermometer from the Side?

Place the patty on a clean plate or cutting board. Hold the thermometer like a pencil, with the probe parallel to the cooking surface. Push the probe into the side of the patty, aiming for the exact center. The tip should be at least halfway through the patty's thickness, but it must not poke out the opposite side.

For a patty that is about 1 inch (2.5 cm) thick, insert the probe about 1/2 inch (1.3 cm) deep. For thinner patties, aim for the center point between the two flat faces. If the probe is longer than the patty's width, insert it at a slight downward angle so the tip still rests in the middle, not near the top or bottom edge.

Once inserted, wait for the reading to stabilize. A digital instant-read thermometer gives a steady number in 2 to 5 seconds. An analog dial thermometer takes 15 to 20 seconds and should be inserted deeper, about 2 to 3 inches, which is not possible for thin patties—so use a digital model for best results.

• Use a digital instant-read thermometer for thin patties.
• Insert the probe horizontally from the side, aiming for the center.
• Keep the probe tip at least 1/2 inch from the top and bottom surfaces.
• Do not let the probe poke through the opposite side.

What If the Patty Is Very Thin, Like a Slider?

Sliders and thin smash burgers are often less than 1/2 inch (1.3 cm) thick, which makes even side insertion tricky. The probe tip is the sensing part, and it needs to be fully surrounded by meat. If the patty is too thin, the tip may touch the pan or the spatula, giving a false reading.

One reliable method is to stack two patties from the same batch and insert the thermometer into the side of the stack, so the tip is surrounded by meat from both patties. This works well when you are cooking multiple patties at once. Alternatively, cook a small test patty of the same thickness and use that for temperature checks, then rely on time and visual cues for the rest.

If you must check a single very thin patty, insert the probe from the side at a shallow angle, so the tip lies along the middle plane of the patty. Press the patty gently with tongs to keep it from sliding. A reading of 160°F (71°C) for beef or 165°F (74°C) for poultry is still the target, even if the probe placement is less than ideal.

How Do I Avoid Common Errors Like Touching the Pan or Bone?

Ground meat patties have no bones, but they do sit directly on a hot pan or grill grate. If the probe tip touches the metal surface, the thermometer reads the pan's temperature, which is much higher than the meat's. This can make you think the patty is done when it is still raw inside.

To avoid this, keep the probe parallel to the cooking surface and insert it from the side, not from the top. The tip should be in the geometric center of the patty, equidistant from the top, bottom, and sides. If you feel the probe hit something hard, pull it back slightly and re-angle it.

Another error is taking the temperature immediately after flipping the patty. The surface is hotter than the interior, and the heat has not yet equalized. Wait at least 30 seconds after flipping before inserting the thermometer, and take the reading from the side that has been facing up for a few moments.

When Should I Check the Temperature During Cooking?

Check the temperature once per side, after the patty has had time to develop a crust. For a typical 1-inch thick burger cooked over medium-high heat, check after about 3 to 4 minutes on the first side, then again after flipping. Do not pierce the patty repeatedly, as each insertion lets juices escape and can dry out the meat.

If the patty is not yet at the target temperature, continue cooking and check again after 1 to 2 minutes. Remember that ground meat patties continue to cook after being removed from the heat due to carryover cooking, so you can pull them about 5°F (3°C) below the target if you let them rest for a few minutes. However, for safety, the final resting temperature must still reach 160°F (71°C) for beef or 165°F (74°C) for poultry.

For large batches, check the thickest patty and the one closest to the edge of the pan or grill, as these cook unevenly. Always clean the thermometer probe with hot soapy water before and after each use to avoid cross-contamination.