As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED SLIGHT HAZE AND ODOR IN R1 GALLEY APPROXIMATELY 40 MINUTES INTO FLIGHT. COFFEE POTS TURNED OFF AND CIRCUIT BREAKERS PULLED WITH NO EFFECT. COCKPIT GALLEY POWER WAS TURNED OFF AND HAZE/ODOR DISSIPATED. MX FOUND BURNED DEBRIS ON BOTTOM OF COFFEE POT AND COFFEEMAKER HOT PLATE. CLEANED COFFEE POT AND HOT PLATE. OPERATED PACKS WITH APU AND ENGINES. NO FURTHER HAZE OR ODOR NOTED.