Thank you, Captain Obvious, but that isn't what the article is advocating:
"Let’s say I wanted to give my urine to a farmer. How would I go about that? If you live in Vermont, you can donate it by the jug. The foundation supplies free funnels and has a collection depot in Brattleboro. It can be “a little sloshy” at first, peecycler Kate Lucy told the New York Times, but you get used to it."
“that isn’t what the article is advocating”
No, but we are allowed to comment on related thoughts that aren’t necessarily exactly what an article is talking about.
If you use a funnel to put it into a gallon milk jug, and put the cap back on, why would it be a problem. My husband and I were paid to take part in an experiment and had to provide our daily urine output. The gallon jug system worked just fine. We dropped it at the lab, and they gave us a clean jug for the next day.