I am combining various vitamins and minerals into a food supplement for my dog and I currently measure each powder individually for each batch of food each week. The supplements are in powder form but have varying grain sizes. Examples include copper, zinc, dicalcium phosphate, kelp powder, table salt, Vitamin E, Vitamin B-12.
If I were to make a giant batch of the supplements above using the proper proportions can I safely measure out of that large batch the appropriate volume each week or will the various consistencies / densities of the powders unevenly distribute making the weekly scoops proportionally unbalanced?
Is there some piece of equipment that could be used to mix the powders guaranteeing even distribution for batch usage?
Thank you in advance for any advice.