Hi Casey! Tinctures fairly often change brown (the liquid and herbs), to ensure portion sounds alright. I’m unsure about the faint rotting smell although. I just went through and sniffed my collection of tinctures and they've varying smells – many of the oldest types just smell like solid Alcoholic https://dominickzpgpu.thechapblog.com/21303870/5-tips-about-learn-all-about-lemon-balm-you-can-use-today