Question: are glucomannan and xanthan gum interchangeable?
Answer: Also known as Glucomannan powder, Konjac powder is ground up konjac root which has been used in Asia as a dietary fiber for several hundreds of years. ... When used in baking, you can use the same amount of Konjac powder as you would xanthan gum (1/2 teaspoon per cup of flour for cakes and breads).