Grocery › Buckwheat Flour - Poschaven Image 1 of 2 Image 2 of 2 Buckwheat Flour - Poschaven from $8.00 Stone Ground, natural flour, no additives, milled in Northern Ontario. Size: Select Size 800g 1.5kg Add To Cart Added! Stone Ground, natural flour, no additives, milled in Northern Ontario. You Might Also Like Dark Rye Flour - Poschaven Oat Flour - Poschaven Wheat Flour - Poschaven White Spelt Flour - Poschaven Wildflower Honey - Poschaven