More 1.5 shenanigans. I think I'm gonna see if I can sell what's left to a friend who was interested in trying soylent, as it seems my stomach won't tolerate more than a tiny bit of it. But I tried another flavor, so description follows.
Made a "meal" batch today. 2 scoops soylent, 450 mL freshly-brewed tea (roughly; my measuring cup had 25 mL intervals), and about 1/8-1/4 c frozen blueberries, which I thawed in the fridge overnight along with ~1/2-1 tsp sugar (similar to how I prep them for muffins, but less sugar).
I mixed it in the blender, which improved texture and of course broke up the blueberries. It tasted better than it did with just tea, with very little blueberry flavor (which is ideal, because I like a hint of blueberry at most). The sweetness kind of balanced out that grainy flavor, bringing it even closer to the kind of bland I'd expected Soylent to be from the start.
I poured most of it into a travel mug for work, then put the rest into a glass (probably 150ish Calories worth, estimating by volume vs volume of the 250-Cal batch). I put the big container in the fridge and drank what was in the glass.
It tasted exactly the same when it came back up half an hour later.