Most of mine are powders (oats, protein, potassium, sulfur, phosphate, salt, maltodextrin). I have 3 tablets (calcium / magnesium, iron, choline), and 3 liquids (water, olive oil, Alive multi vitamin).
I mix up 4 shakes a day using about 1 liter of water per shake. When I am mixing the ingredients I put the protein powder in first, then the malto, then more protein and then the other misc powders (broken out evenly of course).
I then shake the powders together in my shaker. I found that if the malto is on the top or the bottom of my shake it creates a powdery mess or goo at the bottom of my shaker that I don’t want to drink.
After the powders are mixed up I put a little hole (using the handle of a normal spoon) in the center of the powder and pour in the olive oil and Alive, and then I cover the hole with the powder. I started to do this as I found that the oils were sticking to the sides of my shaker.
That’s the point when I add in the first amount of water. I add the water twice because the first time I add water the powder is taking up too much space. Once the first shake is done with the water I add in the rest of the water.
For storage everything is in their original containers sitting on my counter top. When I start ordering in bigger bulk I will probably purchase some tupperware containers (dark ones) and store the ingredients in those, probably with their own measuring devices.
Rob found a powdered oil that he is using in the official Soylent. I don’t think any of us have figured out what it is yet, but I could be mistaken.