You might have some extra cooks in your kitchen this holiday season! Avoid clogged pipes with this advice:

5 Things You Really Shouldn't Be Putting Down Your Drain

Even if you have a garbage disposal, certain foods can seriously gum up the works. To keep your pipes flowing freely, don't put these things down your drain — ever. Paul Abrams, a spokesperson for Roto-Rooter Services Company, says so.

1. Starchy foods

Pretend your sink is on a perpetual Atkins diet and steer clear of giving it too many carbs — even if you're lucky enough to have a garbage disposal.

"There are several foods that cause big problems in your drain when you put large quantities into the disposal," says Abrams. "The worst offenders are pasta, potato peels, and rice. These starchy foods turn to goo inside your drain."

How to dispose of starchy foods: Drain those items through a sieve or colander and then dump the rest into the trash. Then, use a paper towel to clean out the remnants from the strainer before you wash it. (Or compost them of course!)

2. Fat

To keep on the weight-loss theme, your sink's meals should also be fat-restricted. "It goes in as a liquid, but it will congeal like candle wax and gradually decrease the diameter of your drainpipe until the flow eventually stops altogether," Abrams says.

How to dispose of cooking fats: What to do instead? Keep an old coffee can nearby and pour off oil before washing the pan. Some fat is bound to slip down the drain, so to keep it from building up, run the tap at its hottest temp for a minute, followed by a few healthy squirts of grease-cutting dish soap, like Dawn. Then, run the water for one more minute.

3. Breakfast Stuff

Even though they're small and you think they'd be no big deal, broken eggshells and coffee grinds can cause problems."It takes a lot of water to push them through your drainage system so they usually end up contributing to a clog deep inside your pipes," Abrams says.

How to dispose of eggshells and coffee grounds: Peel hard-boiled eggs over the trash and throw away shells once you've cracked them. (Or compost the shells!) Use a fine-mesh sieve when cleaning out a French press and toss the grinds it collects. If your coffee carafe tends to get grounds in it, add a bit of water to a mostly empty pot and dump it in your garden.

4. Fibrous Foods

"Fibrous foods like celery chunks and carrot peels can overwhelm the disposal and clog your drain," Abrams says. And without a disposal, these chunks will obviously just sit in the drain and cause clogs.

How to dispose of fibrous veggies: Do your drain (and yourself!) a favor and put all veggie scraps right into the trash or compost.

5. Seeds

Seeds of all sizes are problematic. You might be tempted to see what your disposer can do with a peach seed, but know this: It won't do much! "Large seeds end up bouncing around inside the disposal like a rock," Abrams says. "They'll just clatter around inside and beat up your disposal until it is finally removed." Smaller seeds, like flax seeds, will just get stuck in the curves of the pipes and cause backups.