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Although it has only recently received GRAS status (GRAS 22), furfuryl ethyl ether has been known in some circles for decades. Research through the US Patent database shows that Firmenich has has a handle on this compound for quite some time. In 1972, a patent titled "Flavor Modified Soluble Coffee" (3,702,253) was granted. The Firmenich claims state that although not directly related to coffee flavors, the use of furfuryl ethyl ether either singly or in combination with other compounds may contribute desirable flavor notes.
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