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Pouring Grease Down the Drain: Why It’s Bad and What It Can Do to Your Pipes

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The holidays are right around the corner, which means it’s time for family gatherings and scrumptious homecooked meals. It’s always nice to spend time with loved ones — but when you have too many cooks in the kitchen, things can go sideways in a hurry. That’s why it’s so important to remind Aunt Edna not to pour grease down the drain, or you might end up as salty as the Old Bay Seasoning on your crab cakes.

Why You Should Never Pour Grease Down the Drain

Think about the last time you fried something in a pan or a deep fryer. The oil that crisped up your bacon or chicken to the perfect crunchy texture might be a liquid when you pour it, and it might be a liquid when you’re cooking, but it doesn’t always stay that way. After some time, that oil will congeal into a gummy-like paste.

What Happens When Grease Is Poured Down the Drain

After it’s poured down the drain and hardened, oil becomes a sticky magnet for debris that can clog your pipes. The consequences of pouring grease down the drain typically start innocently enough, with water taking longer to go down. But as the buildup continues to grow, it can cause a complete backup of your system. Grease that isn’t disposed of properly can also wreak havoc on septic tanks and community sewer systems.

How To Handle Leftover Grease

If your Aunt Edna is anything like the other Aunt Ednas we know, chances are she’s already hip to this trick, but it bears repeating. The best way to dispose of hot grease is to remove any remnants of food and pour it into a heat-resistant can or jar (pro tip: glass, ceramic or metal vessels work perfectly) for it to harden. Once the grease has congealed, you can either throw the entire can into the garbage or, if it’s just a small amount, use paper towels to wipe the container clean.

Image showing the importance of not pouring grease down the drain and instead using an alternative method like a bottle

On the other hand, many people will save recycled grease, especially bacon grease, for later use as it delivers a delicious, salty and fatty flavor to dishes like cornbread, biscuits, pasta or cooked veggies. In the old days, many home cooks would store their grease can on the back of the stove or a counter. Today, experts caution against leaving the grease at room temperature, suggesting instead to keep it either in the freezer or refrigerator.

What To Do if You’ve Poured Grease Down the Drain

No amount of grease down the drain is good for your plumbing, but we know that stuff happens and that Aunt Edna can be a little forgetful sometimes. If you catch it quickly, your best bet is to flush the system with hot water and dish soap as it can restore the grease back to a liquid form. Boiling-hot water is ideal, but not all pipes can withstand such high temperatures.

Store-bought drain cleaners can be effective, but those should be used sparingly. Additionally, home remedies like pouring baking soda and white vinegar (one-half cup of each, with baking soda going down first, followed by the vinegar) may also work when topped off with hot water.

If you find that your pipes are clogged as a result of grease going down the drain, the professionals at Prime Plumbing are always here to help. Save time, call Prime!

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Locally owned & OPERATED; Founded IN 2012

We take the worry out of things with upfront pricing

OPTIONS TO HELP YOU finance any service needed

Licensed Technicians who treat your home with care

Our maintenance plans make you the priority

Discount pricing for active and retired militaRy personnel

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    [UPDATE: RESOLVED] I'm updating this review to reflect that Prime Plumbing has owned up to the situation and made it right. Once my new toilet arrived, they returned and completed the installation at no additional cost to me. The 5-stars are for Ernie and Hailey who handled the final install, and they were a complete 180 from my previous experience. They were awesome, professional, and sociable. You could tell they actually enjoy their work and take pride in it. They got the job done right. While the road to get here was frustrating, I appreciate the company standing by their work and sending the right team to finish the job. [OLD REVIEW] I hired Prime Plumbing to fix a toilet leak, and after 4 visits and hundreds of dollars, I had to do their work for them. Here is the timeline of negligence: March 27, 2025 (Invoice #90891): I paid an $89 trip fee to have a technician come out. He did a visual glance without even lifting the toilet and told me "nothing was wrong." The leak continued. Nov 1, 2025 (Invoice #97073): I paid $634.56 for a "Toilet Pull and Reset" (Service Code TUR-110). The invoice states they would "prepare the mounting system." They claimed the issue was a decayed wax seal (after initially guessing "condensation"). They did not inspect the toilet for cracks, but they didn't miss the opportunity to try and upsell me a new water heater. The leak continued. Nov 24, 2025 (Return Call): When they came back, the technician tried to blame "condensation" again and claimed "these electric toilets aren't reliable", again making excuses. He replaced the wax seal again without inspecting the toilet. Nov 30, 2025: The leak returned. Before booking them again, I spent 1.5 hours doing what they should've done. I replicated the leak and reached behind the toilet to feel the failure point. I felt the wax ring and—crucially—I felt plastic obstructing the seal. Dec 1, 2025 (Invoice #97936 Return Call): The tech arrived, and I told him what I found. He told me, "That's impossible... Show me how you did it. Show me this magic." I had to literally get on the floor and prove it to him. I ABSOLUTELY should not have had to do his job for him. He then complained about how he "can't keep coming out here" and is "losing money." Completely unprofessional. He finally pulls the toilet up, actually inspects it, and finds a crack. He sounded gleeful showing it to me, acting like this vindicated his misdiagnosis. He then told me I need to pay a third time to have a new toilet installed. THE REALITY: Did he inspect it the first time? If he did and saw no crack, then he caused the crack by mishandling the toilet. Did he not inspect it? Then the crack was there the whole time, and due to his incompetence, he misdiagnosed the issue for months while taking my money. I paid premium pricing for a professional diagnosis and fix. Instead, I got laziness in March, incompetence in November, disrespect in December, and an issue that wasn't fixed. Now they want more money to fix the issue they likely caused. Avoid this company unless you want to do the plumbing yourself after paying the bill. When my new toilet arrives, I will be reaching out to them to complete the install of the toilet at no additional cost to myself (I am not asking for a refund on the cost of a toilet, just want them to install it properly.) Otherwise, this is definitely going to be a complaint to the MHIC.
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    Paul was awesome fixed my issue right away! Prime plumbing came out the same day !
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    3 days ago
    Very professional and courteous Friendly would recommend this company
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