While some grains contain gluten, there are several naturally gluten-free grains that people following a gluten-free diet can enjoy. These include oats, quinoa, brown rice, corn, millet, amaranth, ...
is brewed from a combination of barley and rice. However, that definition of beer has since been expanded, and we have the rise in understanding of gluten intolerances to thank for it. Back in ...
An exception is Kebari barley, which does not contain appreciable levels of gluten and can be used to make safe beer for individuals with CD, although it is not commercially available in Australia.