Example 2 cont. l Create an isotherm for: corn flakes, raisins and mix l What water activity would they reach if equilibrium occurred in the package? l Raisins get hard below 0.44 aw and bran loses crunchiness above an aw of 0.4. Is there a problem with this mixture and how would you solve it?Example 2 cont. l Create an isotherm for: corn flakes, raisins and mix l What water activity would they reach if equilibrium occurred in the package? l Raisins get hard below 0.44 aw and bran loses crunchiness above an aw of 0.4. Is there a problem with this mixture and how would you solve it?