Yes, you can grow cacao trees and make your own chocolate from the pods

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Though cacao pods come in many colors, the way to tell if they are ripe is to scratch the surface. It's unripe if green and ready to harvest if yellow. Photo by Raven Hanna.

Aside from the odd piece of See's Candy, molecular biologist Raven Hanna didn't grow up a chocoholic. On a trip to Belize more than a decade ago, she encountered cacao trees and learned how the Maya people processed the pods for chocolate. Now living on the Big Island of Hawaii, she says that chocolate has taken over her life. On any given day, Hanna might be harvesting cacao, winnowing beans, or tempering chocolate for bonbons. 


Seeds are found in the mucillage or pulp. Photo by Raven Hanna.

In Hawaii, all varieties of cacao grow well. Hanna grows most of her trees from seedlings. It takes three to five years before the tree bears fruit and up to six months before pods are ready to be harvested. Scratching the surface of the skin will indicate ripeness, with yellow flesh indicating the pod is ready to be harvested.


Top desserts or snack on candied cocoa nibs. Photo by Jeremy Lutes.



Not all cacao is fermented. In Mexico, unfermented cacao is used in beverages and doesn't have the fudgy taste associated with chocolate. Hannah explains that fermentation lowers the bitterness and astringency of the seeds. The breakdown of the complex molecules into simple molecules enhances the flavor but it's the process of roasting that brings out the distinct chocolate taste.


Raven Hanna says chocolate has taken over her life. Photo by Jeremy Lutes.

Her book, "One Cacao Tree: how to make chocolate from fresh cacao pods," walks readers through the process of making tree-to-bar chocolate… but you'll need to live in a tropical climate to grow cacao.


"One Cacao Tree" is a how-to for transforming pods into chocolate. Photo courtesy of Raven Hanna.