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Homebrew Mint Extract
I clearcut a stand of spearmint and turned it into three jars of what should become mint extract:

Homebrew mint extract – start 2021-06-17 The left jar has 3 ounces of mint mostly covered with 80 proof vodka and the other two jars each have 5 ounces submerged in 180 proof grain alcohol.
Nine days later:

Homebrew mint extract – 2021-06-26 The vodka is now on the right and shows a weird layering caused by the leaves extending above the light yellow liquid; I’ve been inverting the jars every few days. The grain alcohol looks more like the previous iteration, with uniformly decolored leaves in dark green liquid.
A closer look:

Homebrew mint extract – vodka vs grain alcohol – 2021-06-26 What’s happening in the vodka jar does not look like a nominal outcome …