I picked up a gallon of fresh pressed apple juice from the local orchard. I have made some great cider with this stuff in the past. I was getting ready to mix up a batch and found that my little plastic jar of Pectic Enzyme powder had solidified. I mean hard as a rock. I got it to soften with a few seconds of heating in the microwave and removed it from the jar. Now it is rock hard again. I only need 1/2 teaspoon for my batch. Is this stuff still functional or is it ruined? If it is not ruined I can dissolve some in a little water and use it. Any thoughts?