Klaas Martens, an organic farmer, walks through a field of buckwheat Tuesday, Aug. 18, 2026, in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

Buckwheat grows in a field Tuesday, Aug. 18, 2026, in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

A buckwheat cereal sits on a shelf for sale Thursday, Aug. 20, 2026, at a grocery store in Rochester, N.Y. (AP Photo/Joshua A. Bickel)

Buckwheat dust and footprints cover the floor near equipment Wednesday, Aug. 19, 2026, at The Birkett Mills in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

Unhulled buckwheat seeds sit in a processing machine Wednesday, Aug. 19, 2026, at The Birkett Mills in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

Eric Gifford, head miller at The Birkett Mills, holds buckwheat flour Wednesday, Aug. 19, 2026, in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

Eric Gifford, head miller at The Birkett Mills, takes a sample of unhulled buckwheat seeds before they are ground Wednesday, Aug. 19, 2026, in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)

Sunlight illuminates The Birkett Mills, Wednesday, Aug. 19, 2026, in Penn Yan, N.Y. (AP Photo/Joshua A. Bickel)