Immature cacao fruit. |
A lot of Hawaii residents are growing chocolate—either for a
hobby or commercially.
And if you’re growing Theobroma
cacao, the cacao tree, from which chocolate is made, chances are you’ve
experimented with making some.
It turns out there’s a lot of disagreement about how best to
process this magical fruit.
Traditionally, the fruit is harvested and the
cocoa-producing seeds removed along with their white fleshy pulp. All of that
is then fermented, normally with the bacteria and yeasts that show up
naturally.
Later, the fermented beans are cleaned, dried, roasted,
processed to remove the seed coat, and then the resulting nibs are ground into
chocolate liquor. After that you can make chocolate milk, add the stuff to
cake, or even make chocolate bars.
It’s a whole lot of work. There are dozens of Hawai`i
companies marketing Hawaiian-grown chocolate. I’ll list a few, and apologize to
those left out.
Manoa Chocolate on O`ahu has a quick video on production.
The Moloa`a Bay Coffee folks on Kaua`i do excellent
chocolate. I've tried it.
The Original Hawaiian Chocolate Farm does tours in Kona
There’s Waialua Estate on O`ahu.
And Steelgrass Farm on Kaua`i.
You can take the Maui Chocolate Tour.
It goes on and on. Do your own search to find more.
And it turns out, there are different theories about which
processing method for chocolate is best.
For example, the fermenting is supposed to bring out a
better flavor, but it can also remove some of the valued anti-oxidants.
“Substantial
decreases (>80%) in catechin and epicatechin levels were observed in fermented
versus unfermented beans,” says this paper in the Journal of Agriculture and
Food Chemistry. Catechin and epicatechin are anti-oxidant flavonoids. They’re
also found in green tea.
Of course, we really don’t eat chocolate because of its
health benefits, do we?
Fermenting can also increase the likelihood that rot will
set in during the fermentation. (I lost a whole season that way once.)
There is a small movement marketing non-fermented cacao. I tried
doing that. Just drying the beans without fermenting and then roasting them. Still tastes like
chocolate to me, but I haven’t done proper testing to see whether it’s inferior
to fermented beans.
There are studies that argue that the specific type of yeast
used in fermenting makes all the difference.
“Our findings demonstrate that yeast growth and activity
were essential for cocoa bean fermentation and the development of chocolate
characteristics.,” wrote the authors of this paper.
But wait, the Mars candy company has announced a patent for
a fermentation-free chocolate. No yeast at all. It uses an ethanol soak for a
couple of days instead of the fermentation. And it insists that it’s the
ethanol, not the microbes, that causes the great chocolate flavor.
You’d assume the Mars people know something about chocolate. Here is the link to Oliver Neiburg’s article in Confectionery News on the subject of the new Mars technique.
There’s more on the Hawaiian chocolate industry at the website of the industry organization, Hawaii Chocolate and Cacao Association..
© Jan TenBruggencate 2017
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