Stop in for a cup of coffee

Just got done reading this, very interesting. I have several plastic race jugs which I also use to fill up mowers, ATV's etc. I fill them directly from the jugs with the plastic hose that came with them, they are flexible and I do not use a separate funnel.
One of my take aways is to make sure the two are touching during the pour. Also not to hold the can in the air or even on the back of the truck.