How is production of ethanol from corn affecting the price of corn for food?
Robert Miller
Updated on February 06, 2026
Normalizing corn price impacts by the change in corn ethanol volume, we find that each billion gallon expansion in ethanol production yields a 2-3 percent increase in corn prices on average across studies.
Why is corn so significant in ethanol production?
Corn (Zea mays) is a popular feedstock for ethanol production in the United States due to its abundance and relative ease of conversion to ethyl alcohol (ethanol).
How did ethanol use affect the shortage of corn available?
The use of ethanol affects the shortage of corn drastically because it was being use to make fuel instead of using it to make food, this led to the inflation of both corn and food prices after the drought.
Is ethanol production from corn sustainable?
While ethanol fermented and distilled from corn is considered a renewable fuel because corn growth, which removes carbon dioxide from the air during photosynthesis, offsets carbon dioxide emitted during combustion, its production also takes a sizable toll on the environment.
Which country is the largest producer of biofuels?
The United States
The United States is by far the largest producer of biofuel in the world, accounting for. The country produced 1,557 petajoules in this year, and is a major producer of biodiesel.
How might mass production of corn ethanol affect the agriculture industry?
Greenhouse gas emissions from the U.S. crop sector could increase. Changes in tillage practices and conversion of land to crop production may reduce stored soil carbon. The demand for corn ethanol would increase water use where corn feedstock production displaces crops that require less water, such as soybeans.
Is ethanol a good fuel source?
Overall, ethanol is considered to be better for the environment than traditional gasoline. 2 Adding ethanol to gasoline even in low percentages, such as 10% ethanol and 90% gasoline (E10), reduces carbon monoxide emissions from the gasoline and improves fuel octane.
What is the connection to corn and food prices dramatically increasing and the production of ethanol for flex fuel cars?
The higher the price of corn, the more expensive it is to divert from feeding animals or making high-fructose corn syrup and instead distill it as alcohol fuel for cars and trucks. Second, the higher the price of oil, the more economically ethanol can be blended with gasoline.
How much corn does it take to make 1 gallon of ethanol?
Through research performed at Cornell University, we know that 1 acre of land can yield about 7,110 pounds (3,225 kg) of corn, which can be processed into 328 gallons (1240.61 liters) of ethanol. That is about 26.1 pounds (11.84 kg) of corn per gallon.
What was the increase in corn acreage due to ethanol?
Another study published last year in the American Journal of Agricultural Economics found that between 2003 and 2014, increases in ethanol demand alone led to a 3 percent increase in corn acreage, and less than one percent increase in total crop acreage in the United States by 2012 compared to 2008.
How much of Kansas corn is used for ethanol?
For perspective, about 40% of Kansas corn left the state last year. Ethanol demand usually consumes about 38-39% of the corn crop, just behind demand for corn fed to livestock. Josh: We are absolutely seeing a decline in corn demand.
Why are the prices of corn going up?
Corn prices have been driven up because significant flooding in the Midwest has delayed expected harvests and potentially lowered corn yields. Higher feedstock costs and relatively unchanged ethanol demand have driven ethanol margins and profitability to multiyear lows, and current ethanol production levels may soon be affected.
How is covid-19 impacting the ethanol and corn producers?
In the previous article, I reported that gasoline demand had plummeted to the lowest demand number in more than 50 years. But the COVID-19 pandemic isn’t just impacting the nation’s refiners and oil producers. The U.S. is also subject to a Renewable Fuel Standard (RFS) which consumes most of the nation’s corn ethanol.