i've got it up to 11 grams in 14 oz of liquid deposited about 3.5 grams at a time more or less randomly over a 1 week period. Shaking the mixture about 3-4 minutes a day and leaving it in the freezer otherwise. I'll add one more 1/8th ounce over the next week or two then let it sit for another 7-10 days after that continuously shaking. I don't think i can afford to meet my 28gram goal but i figure 14 grams boiled down to 4 ounces of liquid will achieve an 1/8th oz plant per fluid ounce which should be sufficient (and near the saturation point if i remember correctly).