<p>Based on your photo your pot appears to be made from aluminum based on the white corrosion.  This will make cleaning it a bit harder overall but no worries!  A great product that will take care of this issue for aluminum or stainless (many other materails as well) is Bar Keepers Friend. </p>

<p>From <a href="https://en.wikipedia.org/wiki/Bar_Keepers_Friend" rel="nofollow noreferrer">Wikipedia's article on Bar Keeper's Friend</a>:</p>

<blockquote>
  <p>Unlike more abrasive cleaning powders such as Comet and Ajax, Bar Keepers Friend uses oxalic acid as its primary active ingredient. A similar abrasive cleaning product, Zud Heavy Duty Cleanser, also contains oxalic acid. Prolonged use and extended skin contact may cause irritation, peeling and contact dermatitis, which is avoided by wearing gloves. The product can also be an eye irritant.</p>
</blockquote>

<p>I just used BKF to clean my stainless percolator pot and it did a great job it looks new!  I had baked on brown residue and it took it off in less then a minute.  Now my pot looks almost new.  </p>

<p>For your specific pot I would get a good scrub brush and some BKF and give it a few minutes scrub and it will look new again!  I think BKF may be one of the most underrated tools for us coffee junkies.  It gets everything so clean, it even has taken those impossible stains out of the bottom of some of my well used coffee cups.  </p>

<p>To prevent corrosion issues in the future the best course of action is to clean it and dry it completely after each use and not let coffee or water sit in it for prolonged time.</p>

CC BY-SA 4.0
2018-09-20T05:02:23.513Z
I have submitted an edit suggestion to remove the solicitation to visit your web site. You are free to link to your site where it is obiously relevant, but that didn't seem like one of those cases. See also [How not to be a spammer.](/help/promotion) Hope this helps.
tripleee
CC BY-SA 4.0
2018-09-20T07:35:32.047Z
Hi @decafmobius. You may want to add your personal details and affiliation to your profile page.
MTSan
CC BY-SA 4.0
2018-09-20T16:59:27.360Z
My apologies, not wanting to be a spammer!  I am trying to build a site all about coffee, decaf and brewing techniques thought it might be helpful.
decafmobius
CC BY-SA 4.0
2018-09-20T04:58:03.327Z
2018-09-20T08:44:13.900Z
2018-09-20T08:44:13.900Z
decafmobius
<p>That honestly looks like baked on coffee stains and aluminum corrosion. Aluminum is really bad for the body, so I would highly suggest switching to a stainless steel moka pot. If you would prefer to keep using the aluminum one, try bar keepers friend as one of the previous answers suggests.</p>

CC BY-SA 4.0
2019-08-21T02:13:28.093Z
Please explain why aluminum is really bad for a moka pot.
R Mac
CC BY-SA 4.0
2019-08-21T11:57:06.910Z
Aluminum oxidizes quite easily and rapidly, so aluminum moka pots are rather difficult to keep clean and free of oxidation. In addition to the difficulty of keeping it clean, aluminum oxide is also just not really good for the body.  The data on the subject varies as to the toxicity of aluminum oxide, but everyone basically agrees that it probably isn't good for you to consume aluminum oxide. Some studies suggest it may be linked to alzheimers, and a number of other health problems.
BescaRoasting
CC BY-SA 4.0
2019-08-22T02:56:58.650Z
From [canada.ca](https://www.canada.ca/en/health-canada/services/household-products/safe-use-cookware.html#al): *"While aluminum has been associated with Alzheimer's disease, there is no definite link proven. The World Health Organization estimates that adults can consume more than 50 milligrams of aluminum daily without harm."* So as long as you're not sanding the inside too often before use, you're probably fine.
JJJ
CC BY-SA 4.0
2018-10-24T10:43:57.000Z
2018-10-24T10:43:57.000Z
BescaRoasting
<p>The bottom of your pot looks like copper and the crusty gunk looks like scaling (minerals left behind by water that has been boiled or evaporated away). Bar Keeper's Friend will clean that stuff right off, or, for a milder solution, you could first try descaling solution of 1:1 white vinegar to water. Simply dump descaling solution in to the point where the scaling reaches, let it soak for about ten minutes, then brush with a soft brush or sponge.</p>

CC BY-SA 4.0
2019-08-21T02:19:57.390Z
2019-08-21T02:19:57.390Z
R Mac
<p>Moka pots can be Aluminum or stainless steel. Yours looks Aluminum. Stainless steel should remain stainless forever and should clean up with just soap, water and elbow grease. </p>

<p>If it is magnetic, it is steel not aluminum. So check it with a magnet. </p>

<p>If yours is steel and rusting, then you might have a bigger problem, every-time you use it, it might rust, unless you dry it completely after every use.</p>

<p>To clean aluminum, start by using a mild dish soap and water to remove major debris. To remove the oxidation, make a cleaning solution by mixing lemon juice and cream of tartar, or vinegar, with some water. Then scrub it, rinse and repeat til your satisfied.</p>

<p>Additionally aluminum oxide is not black. Aluminum oxidizes with a very thin layer that is hard for us to see at all and gives it a dull appearance. So I might assume that what is on there is burnt stuff.</p>

CC BY-SA 4.0
2018-08-31T15:41:30.177Z
2018-08-31T15:41:30.177Z
Monkey Wrench
<p>I got a moka pot about 1 year ago, I used only 2 times. After the first time I used it I cleaned it with soap and let it air dry. I noticed then some oxidation (rust) inside the pot, I tried to soak it in hot water and vinegar but it didn't work. So, is it safe to use it (although I smell the metal from the pot)? How can I get rid of the rust? And what is the best way to clean a moka pot?</p>

<p><a href="https://i.sstatic.net/Yd5tL.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Yd5tL.jpg" alt="oxidized moka pot"></a></p>

CC BY-SA 4.0
2018-08-24T14:01:16.070Z
Possible duplicate of [Moka pot - oxidization, rust or mold?](https://coffee.stackexchange.com/questions/3379/moka-pot-oxidization-rust-or-mold)
MTSan
<moka><cleaning>
How can I clean a rusted moka pot?
Sh Moh
# How can I clean a rusted moka pot?

(Asked by: username_0 on 2018-08-24)

I got a moka pot about 1 year ago, I used only 2 times. After the first time I used it I cleaned it with soap and let it air dry. I noticed then some oxidation (rust) inside the pot, I tried to soak it in hot water and vinegar but it didn't work. So, is it safe to use it (although I smell the metal from the pot)? How can I get rid of the rust? And what is the best way to clean a moka pot?

[![oxidized moka pot](https://i.sstatic.net/Yd5tL.jpg)](https://i.sstatic.net/Yd5tL.jpg)

**Tags:** moka, cleaning

> **Comments:**
> **username_1**: Possible duplicate of [Moka pot - oxidization, rust or mold?](https://coffee.stackexchange.com/questions/3379/moka-pot-oxidization-rust-or-mold)  

---

## 4 answers

### Answer by username_2 on 2018-09-20. Score: 2

Based on your photo your pot appears to be made from aluminum based on the white corrosion. This will make cleaning it a bit harder overall but no worries! A great product that will take care of this issue for aluminum or stainless (many other materails as well) is Bar Keepers Friend.

From [Wikipedia's article on Bar Keeper's Friend](https://en.wikipedia.org/wiki/Bar_Keepers_Friend):

> Unlike more abrasive cleaning powders such as Comet and Ajax, Bar Keepers Friend uses oxalic acid as its primary active ingredient. A similar abrasive cleaning product, Zud Heavy Duty Cleanser, also contains oxalic acid. Prolonged use and extended skin contact may cause irritation, peeling and contact dermatitis, which is avoided by wearing gloves. The product can also be an eye irritant.

I just used BKF to clean my stainless percolator pot and it did a great job it looks new! I had baked on brown residue and it took it off in less then a minute. Now my pot looks almost new.

For your specific pot I would get a good scrub brush and some BKF and give it a few minutes scrub and it will look new again! I think BKF may be one of the most underrated tools for us coffee junkies. It gets everything so clean, it even has taken those impossible stains out of the bottom of some of my well used coffee cups.

To prevent corrosion issues in the future the best course of action is to clean it and dry it completely after each use and not let coffee or water sit in it for prolonged time.

> **Comments:**
> **username_3**: I have submitted an edit suggestion to remove the solicitation to visit your web site. You are free to link to your site where it is obiously relevant, but that didn't seem like one of those cases. See also [How not to be a spammer.](/help/promotion) Hope this helps.  
> **username_1**: Hi @username_2. You may want to add your personal details and affiliation to your profile page.  
> **username_2**: My apologies, not wanting to be a spammer!  I am trying to build a site all about coffee, decaf and brewing techniques thought it might be helpful.  

---

### Answer by username_4 on 2018-10-24. Score: 1

That honestly looks like baked on coffee stains and aluminum corrosion. Aluminum is really bad for the body, so I would highly suggest switching to a stainless steel moka pot. If you would prefer to keep using the aluminum one, try bar keepers friend as one of the previous answers suggests.

> **Comments:**
> **username_5**: Please explain why aluminum is really bad for a moka pot.  
> **username_4**: Aluminum oxidizes quite easily and rapidly, so aluminum moka pots are rather difficult to keep clean and free of oxidation. In addition to the difficulty of keeping it clean, aluminum oxide is also just not really good for the body.  The data on the subject varies as to the toxicity of aluminum oxide, but everyone basically agrees that it probably isn't good for you to consume aluminum oxide. Some studies suggest it may be linked to alzheimers, and a number of other health problems.  
> **username_6**: From [canada.ca](https://www.canada.ca/en/health-canada/services/household-products/safe-use-cookware.html#al): *"While aluminum has been associated with Alzheimer's disease, there is no definite link proven. The World Health Organization estimates that adults can consume more than 50 milligrams of aluminum daily without harm."* So as long as you're not sanding the inside too often before use, you're probably fine.  

---

### Answer by username_5 on 2019-08-21. Score: 1

The bottom of your pot looks like copper and the crusty gunk looks like scaling (minerals left behind by water that has been boiled or evaporated away). Bar Keeper's Friend will clean that stuff right off, or, for a milder solution, you could first try descaling solution of 1:1 white vinegar to water. Simply dump descaling solution in to the point where the scaling reaches, let it soak for about ten minutes, then brush with a soft brush or sponge.


---

### Answer by username_7 on 2018-08-31. Score: 1

Moka pots can be Aluminum or stainless steel. Yours looks Aluminum. Stainless steel should remain stainless forever and should clean up with just soap, water and elbow grease.

If it is magnetic, it is steel not aluminum. So check it with a magnet.

If yours is steel and rusting, then you might have a bigger problem, every-time you use it, it might rust, unless you dry it completely after every use.

To clean aluminum, start by using a mild dish soap and water to remove major debris. To remove the oxidation, make a cleaning solution by mixing lemon juice and cream of tartar, or vinegar, with some water. Then scrub it, rinse and repeat til your satisfied.

Additionally aluminum oxide is not black. Aluminum oxidizes with a very thin layer that is hard for us to see at all and gives it a dull appearance. So I might assume that what is on there is burnt stuff.


---

