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Just got back from a delightful couple of days hiking in the Cathedral Range in Victoria Australia, and I'm washing all the pots and plates, and cursing the black soot that comes off my Trangia alcohol fuel stove. Putting it through the dishwasher seems to have no effect, and it spreads to everything you touch.

Are there any pro-tips for removing soot or even better, preventing it? I'm running the stove on methylated spirits, which in Australia is ethanol that has a small amount of methanol Denatonium Benzoate, Methyl Isobutyl Ketone and Fluorescein added.

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    In my experience, this is dependent on the fuel used. I use the locally common methyl hydrate and it burns absolutely clean with no residue. Take a look at outdoors.stackexchange.com/questions/20056/… for more info.
    – Gabriel
    Jul 9 at 13:45
  • @Gabriel that's pure methanol, which is more readily available in some places than others. In the UK I could order it but not pick it up in a shop easily. In my experiments it also burnt very clear. Methylated spirits in the UK is now denatured with isopropanol not methanol (in mainly ethanol), and IPA burns smokily - good for seeing the flame though. When I used Trangias a lot (25-30 years ago) methylated spirits was ethanol+methanol as the OP has - and we still had soot.
    – Chris H
    Jul 9 at 14:19
  • @ChrisH -- It is and was probably the dye that is/was the culprit.
    – Martin F
    Jul 9 at 19:05
  • @MartinF quite possibly., though I've seen soot from IPA and alternative fuels as linked in my previous comment (and I like a bit of IPA to make the flame more visible). I can get my hands on small quantities of methanol (we have some in work that we don't use) or IPA, but not undyed meths; that is available on ebay but in large containers
    – Chris H
    Jul 9 at 19:54
  • I've actually looked up the ingredients of metho sold here and edited the question.
    – stib
    Jul 12 at 1:42
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This is just a matter of what fuel you use. Some fuels burn cleaner than others. You may need to experiment a little bit to find a fuel that is available in your area and that burns cleanly. For example, I'm in California, and what I use is a certain brand of denatured alcohol that is sold as paint thinner at hardware stores.

The clean burning is a huge advantage of an alcohol stove, and it's the reason that I use one whenever I can. I only use a white gas stove if I'm going to be at high elevation and need to melt snow.

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  • I looked up methanol as a fuel, but it's something like ten times the cost of methylated spirits. Guess I'll just stick to washing everything with lots of dish soap.
    – stib
    Jul 13 at 7:45
  • @stib, I can get methanol on ebay for about twice what I pay for meths (UK, so it will be different), also on ebay at a similar price point I can find bioethanol fuel that's still denatured (with MEK and IPA) but undyed, and with less of the denaturing agents added.
    – Chris H
    Jul 14 at 8:45
  • Ok, I'll keep looking around. Most of the methanol here seems to be for car racing.
    – stib
    Jul 15 at 2:57
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If unable to change fuel, as others have mentioned... as a youth I would spread dish soap (like dawn) over the outside of the pot (where the flames would hit). Then heat up my water/cook on a wood fire which would get the outside of the pot covered in soot. However, because of the dish soap, it came off easily during cleanup; and I would discover any spots I missed with the dish soap.

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This is common with Trangias. I used to find the same in the UK when I used them. My miniature alcohol stove does the same. I've never found a way to prevent it occurring, though it can be made easier to clean off. Like you, I've never found a dishwasher to do anything to it, though any that doesn't come off with a cloth won't come off easily. A few drops of meths on a dry cloth may help get it off, saving your washing up water.

It's sometimes said that adding a little water to the fuel helps, though I've never been convinced. The cause is likely to be the denaturing additives rather than the ethanol itself - I suspect the ketone.

We used to wipe neat washing up liquid over the base of the pan after washing up. That made the soot clean off more easily.

Using the simmer ring makes things a little worse, as the flame from the jets is cleaner - but you'll need to use the simmer ring for long cooking or it will be too fierce.

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  • yeah, I've heard of the water trick and it definitely doesn't work. The metho sold here is 5% water anyway.
    – stib
    Jul 12 at 1:41
  • Ours nominally doesn't have any water in, but it will have once it's been opened for a while. Apart from a few % isopropanol, ours also has a little methyl-ethyl ketone which might not help. I don't know how cleanly it burns, but it does so too rapidly for for me to but some and experiment with that alone.
    – Chris H
    Jul 12 at 8:04

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