Why are the prices of coffee and oats rising faster than those of oil?

World food prices have risen sharply during the year. Among the fastest growing prices are those of coffee and oats. Futures rose 81% and 87% on December 22, respectively, according to Finviz. They are even ahead of oil and natural gas, whose markets are still recovering from Covid-19 restrictions. According to experts, agricultural products usually do not have such a large price movement in such a short time. Coffee and oats are different types of crops. Coffee is grown in areas with tropical climates, and the cereal plant requires a different climate for its cultivation, but the production of both crops has been hampered by severe weather conditions over the past year. This is the reason for the big rise in prices. The jump in coffee prices is due to the unprecedented drought followed by severe frosts in Brazil, where a third of all coffee produced worldwide. The harvest was crippled by about 40 percent year-on-year in September for Arabica, the world's most-consumed coffee, ...