I will be heading to Costa Rica next month, and wondering if anyone had any recommendations on cacao farms to visit? Would love to see the full process of harvest, through fermentation. Any recommendations would be appreciated!

One place you can go is Chocolates Nahua. If I recall correctly, Juan Pablo Buchert is a member here on TheChocolateLife.

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clay - http://www.thechocolatelife.com/clay/

CATIE is always a good resource