I mixed up some Instant Mytol in organic solvents (TEA and PG) a couple of months ago. Here is the posting for it. Here's what it looks like now:
It's turned yellow, with a red haze along the top. Red! I noticed this after 7 weeks, but I hadn't been looking before that. This concentrate has been in a stoppered glass bottle the entire time. I also have some concentrate that's two weeks old of a different formula that contains no TEA, and it's still clear. The other ingredients are the same, making me wonder if TEA is destroying something else in the brew.
Any idea what's happening?