Grainworks Dark Buckwheat Flour is made by milling whole buckwheat, while Light Buckwheat Flour is milled from just the groat with the hull removed. The more hull present, the darker the flour. Buckwheat naturally contains no gluten, has earthy, nutty flavour and mixes well with other flours. Use in buckwheat pancakes, muffins and other baked goods. Not a "wheat" at all Buckwheat is an incredibly nutritious super grain that contains no gluten and has nearly 5 grams of beneficial fiber per cup. Its use as an important food source dates back approximately 8000 years. Buckwheat (Fagopyrum esculentum) is a seed, not wheat, and mixes well with other flours. Buckwheat groats are a good source of manganese, magnesium, copper, zinc and dietary fiber, and flavonoids that help soothe inflammation: rutin and quercitin. The protein in buckwheat is high in quality and balanced with all essential amino acids, including lysine. Please note: Though buckwheat has no gluten, our dark buckwheat flour is not guaranteed to be gluten-free as products containing gluten are ground with the same mills as our dark buckwheat flour. Tasty Tips and Storage Try Grainworks Organic Dark Buckwheat Flour in muffins, cookies, scones and other baked goods. When stored in our resealable bags or an airtight container, buckwheat flour will keep for six months or more in a cool, dark pantry or up to a year in the freezer.