Can you theoretically hold more of a volume of water the colder it is?
Water reaches its maximum density at about $\pu{4 ^\circ C}$.  As its cooled from higher temperatures the density decreases as you would expect as the molecules move more slowly and they can thus "settle" in closer together.

But, as it approaches the freezing point, the molecules are moving slowly enough that they start combining together into a more crystalline, ice-like conformation.  It's still completely liquid, but is starting to organize into the ice structure, and ice is about $\pu{7\%}$ less dense than liquid water.

So in the case of water, you can "fit" the most water into a given volume at about  $\pu{4 ^\circ C}$.