Just noticed something interesting in the coffee market today. March arabica futures ticked up 0.39%, but robusta is sliding harder at -2.24%, hitting four-week lows. The main culprit? Heavy rainfall in Brazil's Minas Gerais region last week—we're talking 117% above normal precipitation. Since Brazil is the world's largest coffee producing country and dominates arabica output, this weather is a game-changer for supply expectations.

The pressure doesn't stop there though. Vietnam's robusta exports jumped 17.5% year-over-year to 1.58 million tons, and their 2025/26 production is forecast to climb 6% to a four-year high. Meanwhile, ICE inventories for both arabica and robusta are creeping back up after hitting recent lows. Brazil's coffee exports actually fell in December (down 18.4%), but that's not enough to offset the supply optimism from the rainfall.

Looking at the broader picture, global coffee production for 2025/26 is expected to hit a record 178.8 million bags. The largest coffee producing country is ramping up yields, Vietnam's pushing hard on robusta, and ending stocks are projected to tighten slightly. The market seems caught between bullish supply concerns and bearish production forecasts. Watching how prices react to the next crop reports.