Usually, the harder it's to harvest a coffee bean, the higher the worth per kg it goes to be once it reaches espresso roasteries around the world. Not every part of the world has this topography though. Brazil, for example, has giant space of flat, appropriate land at excessive altitude. This allows for bulk harvesting carried out by machines. This, in turn, enables Brazil and other countries with similar land to be major exporters of coffee beans world-wide.
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