What external elements can new, unopened Paper Filters absorb if stored improperly in humid conditions?
Answer
Strong odors like spices or cleaning chemicals.
Even unused paper filters possess hygroscopic qualities that make them susceptible to external influences if not stored correctly, especially in humid environments. The microscopic structure of the paper can readily absorb volatile organic compounds present in the air. If these filters are stored near strong external odors, such as potent spices or common cleaning chemicals, the paper will inadvertently capture these smells. When hot water is later introduced during the brewing process, these undesirable, externally sourced smells and compounds are readily extracted and transferred directly into the coffee, resulting in a noticeably unpleasant taste experience.
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