Quote:
Originally Posted by jedzep
What didn't work was apple slices and baking soda locked in the case for 24H
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Not surprised. Baking soda is sodium bicarbonate powder, which does not either react with or absorb odors particularly well. The cardboard box it comes in does absorb odors however. In the consumer products world, its known that the benefit of cardboard is what Arm & Hammer actually sells when people buy their baking soda product for their refrigerators.
Glad you had good results with ionic purifier. With a prior guitar that had a moldy smell from a bad case, I had good luck with activated carbon/charcoal in bags, a cheap-o ozonator, and leaving the guitar out for many days.