When I got this funnel the first thing I did was go out and buy the absolute biggest container of creamer that I could find because I wanted to test my limits and that's exactly what I did! I actually surprised myself with how much I greedily guzzled down, you can really tell towards the end how bloated my belly was with the sweet liquid. I can genuinely say that I've never been that full in my life, I really don't think I could have drank another drop! I can't wait to see what I funnel next.