The sugarcane process — properly ethyl acetate or EA decaffeination — uses a solvent derived from fermenting sugarcane.
How it works
Green coffee is steamed to open its pores, then repeatedly rinsed with ethyl acetate, which selectively binds caffeine. The beans are then steamed again to drive off residual solvent and dried.
The naming
“Sugarcane decaf” is accurate and also marketing: ethyl acetate occurs naturally in fruit and can be made synthetically. The Colombian process uses cane-derived EA, which is why it carries the name — and it is the same molecule either way.
Why it is popular
Done in Colombia at origin, so beans do not travel twice. And it retains sweetness unusually well — EA decafs often taste rounder and sweeter than Swiss Water equivalents, sometimes with a faint sugary note attributed to the process.
Is it safe
Yes. Residual solvent is far below regulatory limits, and ethyl acetate is a common food additive.
Brewing it
Grind coarser than caffeinated coffee, and re-dial when you switch.