Can Coffee Grounds Go Down The Sink?

There is an old saying that coffee grounds help clean the pipes of the sink. Don’t be a fool falling for that. Why would you throw the leftover coffee in your sink instead of throwing it into the garbage as a normal person would do?

Being in a rush doesn’t mean you have to get rid of coffee by putting grounds in the sink. Leave it as it is, when you get back home, you will eventually handle the mess. Isn’t it better to clean the mess yourself afterward instead of dealing with clogged pipes and calling the plumber to create even more mess? I think not.

Today we are going to break down where you should, and should not put coffee grounds. I know the cleaning part is not fun, but somebody got to do it. Now, the answers you are looking for will be provided, just keep reading.

Can Coffee Grounds Go Down The Sink?

Do you throw the food particles in the sink? Of course not, think about coffee grounds with the same logic.

Think of coffee grounds as a small group of plants growing very close together, they don’t break down, and when you cut them into pieces, they stick the same wherever you put them right? Apply the same rule here. Coffee particles due to wet liquid stick together and can block the sink drains.

Put coffee grounds where they belong, TRASH CAN. Toss them into the trash can in order to not create a fuss. The solution is easy. Plus, coffee grounds can suck the unpleasant smell, so even the trash can won’t smell disgusting.

What Will Happen To The Sink After You Throw The Coffee Grounds?

If you keep throwing coffee grounds into the sink, over time, it will clog all the pipes and water won’t go down. All particles of ground coffee will assemble and you may end up changing the whole tube. If you don’t want this to happen, throw coffee grounds in the garbage.

Grease is another issue that doesn’t let the coffee grounds go down the sink. Coffee scum is the term used for coffee oil, and as you are familiar with oil that can block the sink, it is understandable what coffee grounds can do if you throw them into the sink.

Places Where You Shouldn’t Throw The Coffee Grounds

1. Sink

As I previously mentioned, the sink is not the place to throw coffee particles because it will cause a clogging issue, and the oil that comes with coffee lipids ( which is visible on the surface when you drink coffee) is not water-soluble.

2. Lawn/Garden

Coffee grounds are acidic particles, and if your soil has high nitrogen, then coffee grounds will result in drying fruits and flowers in your garden. There are plants such as azaleas and blueberries that can stand high acidic concentrations. You can save coffee grounds for them.

It is also not a bright idea to put coffee grounds in the greenish healthy grass. It will stain the grass by turning them into yellow and brown color.

3. Specific Plants

Did you know that some specific plants feed on coffee grounds? I guess you didn’t. Some plants like Azalea, Rhododen, Hydrangea, Blueberry, Radish, Holly, and many more plants feed on acidity. They tend to take part in the group of acid lovers.


What You Should Do With Coffee Grounds

1. Put Coffee Grounds In The Potted Plants

It is very beneficial to put coffee grounds in potted plants if you own one inside your house or garden. You can use it as a mulch, pesticide, or fertilizer. Water your plants without any hesitation or worry.

2. Throw Coffee Grounds Into The Trash Can

Toss them into the trash can as it can take away the unpleasant smell of food or anything you threw away before coffee grounds.

3. Burn The Coffee Grounds

Yes, you heard it right, burn the coffee grounds to prevent any organism that spreads disease. According to the EPA US (Environmental Protection Agency) coffee grounds have great power and effect when they are burnt, just get a stainless steel plate or bowl and burn them.

4. Use Coffee Grounds In Vegetables

It is unbelievable but true folks, you can use coffee grounds to grow vegetables. They have a neutral level of pH which is between 6.5 to 6.8. When the coffee grounds are filtered, it flushes some acidity out. For that reason, vegetables can stand that level of acidity, plus they have 2% nitrogen to act as a fertilizer.

Can You Use The Same Coffee Grounds Twice?

In brief, you can, but don’t. You won’t get the same taste and smell of coffee if you reuse the same coffee grounds. The smell will give you the feel of burn with a single sip.

Coffee Grounds will stay caffeinated but with lower concentration. Let’s take an example, if the coffee had between 10 mg and 12 mg of caffeine content, it will drastically drop to 3.59 mg and 8.09 mg.

Another reason not to reuse coffee grounds twice is bacteria. They are already exposed once to the moist, being exposed once more before they cool down, is going to be a bird’s nest of bacteria.

Reuse The Coffee Grounds For Cold Brew Instead of Throwing Them Away And Clog The Sink

Coffee is beneficial from every angle you look. Instead of throwing away the used coffee grounds for hot coffee, try cold-brewing where cold brew allows you to reuse the same coffee grounds twice. This is amazing.

In the first cold brew coffee-making process, the aroma and taste will be awesome, but the second time of use is not going to be as stronger as the first one.

The nicest part of cold brew is that you can store them for some time in the fridge. Don’t go too far and store them for months, but around 2 weeks of storing coffee grounds for cold brew is enough.

Keep in mind When You Implement The Reused Coffee Grounds
You should wait 16 hours before reusing the leftover coffee grounds.

If the brewed coffee has a sour taste, do not drink it, throw them away.

Store no more than 2 weeks.

Further Reading

You might be sensitive to coffee, so you might want to restrict your caffeine intake a bit. Some coffee types have more caffeine in them than others. For example, on our article about caffeine content in latte & coffee we went in detail for each one.

We all have spilled coffee in our clothes or carpets before, so we wrote a tutorial on how you can remove coffee stains from them.

Roasting coffee is a tedious process, that’s why you need to see if you can burn coffee and how you can prevent it.

Lattes, Americanos, espressos… there are a million coffee types, and one of them is Cortado. See how cortado compares to Latte.

Have you ever thought of spicing up your coffee by adding cinnamon?