What is Reddit's opinion of Ball Plastic Pint Freezer Jars with Snap-On Lids | 8-Ounces | 3-Count per Pack (1-Pack)?

From 3.5 billion Reddit comments

I use these containers to hold individual servings of powder. Wide mouth canning funnels fit these perfectly.

I mix up 6 servings (1.5 days worth) at a time in about 8-10 minutes, including the oil. A nice sturdy balloon wisk with a good grip helps. Because of I make small enough batches, I don't refrigerate them as they'll get consumed quickly enough. For larger batches (like going on vacation), I will put two servings into a quart sized baggy and then put the quart baggies into a gallon freezer bag -- and these get refrigerated. It's easy enough to eyeball half of the soylent out from the quart-sized baggies for a single serving. Just add cold water and shake! pic

They're freezer jars!