Coffee production rankings can change, and older articles often combine figures from different years or describe movements that were recent when the piece was written. The source focuses on Brazil, Vietnam and Colombia, using their relative scale and changing output to explain the market. Its undated percentages should not be presented as a current league table.
Check whether a comparison measures harvested coffee, processed green coffee, exports or a particular species. The unit also matters: bags, pounds and metric tonnes are not interchangeable without a conversion and an agreed bag weight. A country can have a major role in one coffee category without holding the same position in another.
For a coffee buyer, national output provides context but does not establish the character of a particular retail lot. Use dated, like-for-like figures for a production comparison, then return to origin, processing and roast information when choosing a bag. Understanding what is being counted is more valuable than memorizing a ranking whose period and measurement are missing.
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