Acetaldehyde and Flavor

My Fear Acetaldehyde FEMA 2003 is an aroma chemical that I am scared of. Why? Because I did not follow standard lab safety protocol. I sniffed a bottle of acetaldehyde 100% (neat) directly. (Never, never smell a bottle directly in a laboratory!!! Use the "wafting technique". ) What happened? I nearly passed out and I fell into a chair. I felt sick, had trouble standing up and lost my sense of smell for awhile. This is my only encounter with neat acetaldehyde (20 plus years ago). Now, I avoid it like a child avoids a burner after touching a hot stove. I am afraid of it. Confronting my Fears Occasionally, I decide I have to use acetaldehyde because it is important in good flavors. Many flavors benefit from acetaldehyde: whiskey flavor, … [Read more...]

Coffee and Furfuryl mercaptan FEMA 2493

Memories Small houses keep a family close. My childhood home, built in 1950, is small and cozy. The kitchen has a dining room table that has a view of "out back". "Out back" is not small. There are five acres in which we raised cattle and hundreds of acres beyond which cattle once roamed. I have fond memories of mornings eating breakfast, looking out and smelling coffee. Perhaps this is why coffee is my favorite beverage. Furfuryl Mercaptan Furfuryl mercaptan FEMA 2493 (otherwise known as coffee mercaptan) is the characterizing component of coffee. Coffee flavor and furfuryl mercaptan are products of the roasting process. This chemical reaction is the Maillard reaction. The Maillard reaction is one of the most important reactions … [Read more...]