Long story short, I got a huge oily stain on my raincoat. More precisely butter, on the shoulders part. It looks bad, it smells like butter, and I am really not comfortable having it on my clothes + under my nose.
What I've tried so far:
- removing the butter mechanically as much as I could (wiping with toilet paper)
- washing it with soap, by hand
- washing it in the washing machine, with plenty of dishwasher liquid, as I thought this might remove the stain (as it helped before with other clothes, but not this time)
The stain is still there, and I don't want to wear it like this. It is not a high-tech gear (just a Decathlon poncho), but I would rather not throw it out.
What other ways are worth a try? I haven't found any useful information on the label, just wash on 30 degrees, no chemical cleaning etc.
Also, does it (the butter AND the washing) affect the waterproofness of the material?