A:Answercan try www.batteryjunction.com They sell a transformer to step down the voltage to 110-VAC.
Seven Star 100 Watt Step Up and Step Down Transformer 110-220 Volt TC-100
Item #: SEVEN-STAR-TC100 Brand: Sevenstar
Plugs into 220 outlet. Has a standard 110-VAC outlet. Your coffee grinder draws only 1.2 AMPS 110-VAC.