The World Health Organization states that an average male ejaculate is approximately 2mL. That is almost equivalent to 2/5 of a teaspoon in liquid, which is a pretty small amount. The specimen collection cups we use can hold up to 120mL, about 60 times the amount we would normally see from a donor.
On more than one occasion, when handing a potential donor the collection cup, you will see their eyeballs bulge and mouths drop open, and then feebly ask, “Am I supposed to fill up the whole cup”?