In an attempt to make a hair care product, uncooked white basmati rice was left in an air-tight container half filled with tap water for several months.
When opening the container, the smell was extremely foul and disturbing, one of the most revolting things I have ever smelt. It was worse than the smell you would usually associate with yeast, alcohol, or mold. This horrid smell immediately spread to the entire property and took many hours of fan extraction to remove. It was worse than the smell of sewage.
I rinsed the container used and cleaned it in the dishwasher several times at 75'c. After several dishwasher cycles, the disgusting smell remains. It makes me wonder what kind of biological or chemical product has been created that even a dishwasher cannot neutralise or sterilise at high temperatures? Is this a safe substance? This is especially concerning as this recipe exists on several hair care forums; is it widespread misinformation caused through malice?
I believe this is a valid scientific question about microbial life so on that basis I would not expect it to be down voted.
The substance looked like water with rice or rice starches dissolved in it; it was murky with a whitish colour. There was no air bubbles which could be visually observed, although the murky texture could have been caused by micro-bubbles. The smell was very strange, unlike anything I have smelled before. The closest description I could give is that of sewage, yet it is more disgusting than the smell of sewage if that is relatable at all.