You have three good options for ground beef fat: save it for cooking, throw it away safely, or use it as a flavor base for the dish you’re already making. What you should never do is pour it down the drain. Beyond that, the best choice depends on how much fat you’re working with and whether you want to cook with it later.
Why It Should Never Go Down the Drain
Beef fat is liquid when hot but solidifies as it cools. Pour it down your sink, and it will harden inside your pipes, coating the walls and mixing with other debris to form a thick, stubborn clog. Over time, this buildup can cause backups, damage your septic system, and lead to expensive plumbing repairs. Municipal sewer systems face the same problem at a larger scale, which is why most cities actively discourage residents from putting any fats, oils, or grease into the drain.
How to Save It for Cooking
Rendered beef fat (often called beef tallow or beef drippings) is a legitimate cooking fat with a long culinary history. If you cook ground beef regularly, saving the drippings takes almost no extra effort and gives you a free, flavorful fat to use throughout the week.
Once your ground beef is fully cooked, set a fine mesh strainer over a heat-safe bowl or jar. Pour the contents of the pan through the strainer so the liquid fat drains into the bowl while the meat stays behind. If you don’t have a strainer, you can carefully tilt the pan and spoon the fat into a container. Let it cool for a few minutes before transferring it to a sealable jar or container.
Store the jar in the refrigerator, where the fat will solidify into a pale, solid block. It keeps for several months refrigerated and up to a year or longer in the freezer. Fresh beef tallow should look white or off-white, feel smooth, and have a mild meaty smell. If it turns yellowish, develops an off odor, or tastes sour, it has gone rancid and should be thrown out.
Filtering for Cleaner Tallow
Fat strained through a mesh strainer will still contain tiny bits of browned meat. These particles can cause the fat to spoil faster. For longer storage, line your strainer with a paper towel or cheesecloth before pouring. This catches the fine sediment and gives you a cleaner, longer-lasting product.
What to Cook With It
Beef tallow has a smoke point between 375 and 420°F, which makes it excellent for high-heat cooking like frying and searing. Its high saturated fat content (roughly 48% of its fatty acids) makes it structurally stable under heat, meaning it resists breaking down and oxidizing better than most vegetable oils. The rest is mostly monounsaturated fat (about 40%), with only a small fraction of polyunsaturated fat.
The most classic use is frying potatoes. French fries cooked in beef tallow were the standard at fast food restaurants for decades before vegetable oils replaced them. The result is a noticeably crispier exterior with a richer, more savory flavor. Beyond fries, here are some of the best uses for your saved drippings:
- Roasted vegetables. Toss root vegetables, Brussels sprouts, or broccoli in melted tallow before roasting. The fat promotes browning and adds a hearty depth that olive oil doesn’t match.
- Searing meat. A spoonful of tallow in a hot pan creates a steakhouse-quality crust on steaks, pork chops, or chicken thighs.
- Fried eggs. Eggs fried in beef drippings pick up a savory, almost umami quality.
- Popcorn. Melted tallow makes a savory alternative to butter for stovetop popcorn.
- Biscuits and pie crust. Cold tallow can replace butter or shortening in pastry dough, producing a flaky texture. It works especially well in savory baked goods like pot pie crusts or biscuits.
- Refried beans and rice. A tablespoon of drippings stirred into beans or used to fry rice adds body and flavor.
You can also simply leave the drippings in the pan and build your current meal on top of them. If you’re making tacos, sloppy joes, or a pasta sauce, the rendered fat is already seasoned and works as the cooking base for your onions, garlic, and spices.
How to Throw It Away Safely
If you don’t want to save the fat, the simplest disposal method is what plumbers call “can and cool.” Keep an old glass jar, coffee can, or any heat-safe container under the sink. After cooking, let the fat cool in the pan for a few minutes (hot grease can crack glass or melt thin plastic), then pour it into the container. Once the container is full, seal it and toss it in the regular trash.
For small amounts, you can also wipe the pan with paper towels and throw them away. This works well when you’ve drained most of the fat and just have a thin layer left in the skillet.
If you have a large quantity from browning several pounds of beef, let it solidify in the pan or a bowl in the refrigerator first. Solid fat is easier to scrape into the trash without spills.
Don’t Put It in the Compost
The EPA specifically lists fats, oils, and grease among materials to keep out of backyard compost piles. Animal fats attract rodents and other pests, and home compost systems don’t reach temperatures high enough to break them down properly. The same applies to worm composting bins, where greasy foods can harm the worms and create odor problems. Some commercial composting facilities do accept animal fats, so if your city has a municipal composting program, check whether they take them before tossing drippings in your green bin.