Hardness, defined as the maximum peak force during the first compression cycle (first bite) (Figure 1), was not increased in the 25% and 50% teff muffins when compared to the control, but the 75% and 100% variations were significantly harder. Similar results with an increase in hardness were found in breads prepared with 10%, 20%, and 30% buckwheat flour [19]. However, the substitution of corn and potato starch in gluten-free bread with varying proportions of resistant starch did not significantly change the hardness of bread crumb [20].