What is rye?
Rye is a close relative of wheat and barley. It has a deep, rich taste and is packed with vitamins and nutrients. Rye became a staple food in Europe during the Middle Ages, where it was cultivated in Central and Eastern Europe and was used to produce both bread and alcohol. Rye grows better in poor soils and cold temperatures compared to other cereal grains, surviving in snow cover that would otherwise kill wheat.
In some countries such as Germany and Russia, it is common to make bread with 100% rye flour. Conversely, in places like the States, it is common for rye bread to contain as little as 20% rye in order to create more rise and a more airy texture.
What is rye flour?
Refined flours remove the bran and the germ from the grain, which strips the final product of protein and other key nutrients. This is why many processed flours have nutrients added back in.
Rye flour comes in different varieties, ranging from light to dark, with light rye flour being the most refined and dark rye flour being the least refined. Pumpernickel flour is rye flour that is coarser and wholly unrefined. The unrefined rye berry (which can be ground into rye flour) can also be used for porridge, cereal and salads.
Rye flour is loaded with key nutrients, which include phosphorus, magnesium, zinc and iron. While wheat bread has more protein, rye bread generally has more fiber. Because rye bread is heavy and dense, it is possible to blend it with a high-protein flour to help it rise better. Often the rye bread and rye sourdough that you find in shops and bakeries has been blended with other flours in order to give it a paler colour and a more substantial crust.
Compared with white bread, rye bread has a lower glycemic index, which means it causes a slower, more gradual increase in blood sugar.
Rye in Baking
Rye is not gluten-free, but has less gluten than wheat and barley. It is also less elastic and does not rise and trap air the same way as wheat gluten. Wheat gluten is what makes breads like ciabatta and baguettes light and chewy, with characteristic air holes. Rye flour, on the other hand, produces a more compact and dense bread.
The time required to bake rye bread is about the same as it is for wheat bread – around half an hour. However, bread made with rye flour does take longer to prove (the final rising process in breadmaking).
An all-rye bread has a much longer shelf life than bread made from other grains, measured in months rather than days or weeks. For this reason, it is ideal for taking on long trips and expeditions. Because of its density, it is typical for rye bread to be sliced very thinly.
The best known rye breads include pumpernickel bread, which is a heavy and sweet bread of Germanic origins made using coarse, unrefined rye flour and a sourdough process, and Nordic crisp bread (Knäckebröd), a flat and dry type of cracker originating from Sweden.
ing to expand your baking repertoire, rye is a healthy and versatile flour that you can experiment with.