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Timeline for Black apple crumble!

Current License: CC BY-SA 4.0

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Jun 24, 2018 at 0:18 comment added dlb @rackandboneman I have always found the purple somewhat appealing, but have seen it go to black, which is not so much for me. But have seen zero effect on taste. I always knew walnuts were the source, but did not know the gallic acid part. My first thoughts were tannin, which I guess gallic acid is!
Jun 22, 2018 at 22:19 comment added rackandboneman Interesting! That might explain why cardamom powder can darken apple fillings more than it should by the green color alone (cardamom appears to have gallic acid and related compounds too...)
Jun 22, 2018 at 21:07 history edited dlb CC BY-SA 4.0
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Jun 22, 2018 at 20:50 history answered dlb CC BY-SA 4.0