Thats really good to hear! I totally misunderstood the 2 times you said it was 3 years old. I thought you meant 3 years total. So it was 3 year old bark that was in turn refridgerated for 3 years. Wowza.

Hm. maybe some pigmentation of the bark took part in the orangification(scientific term, i know) of the limonene? Or possible the abscorbic acid had a dye in it? Dont know. Good to hear it was fixed with a basic wash though.