What is the difference between presses?

[Spiderlord]

There is a clear difference between the screw press and the automatic screw press: a one turn reduction in time.

What is the difference between the other presses? I don't really see any in-game evidence that there is one.

[Anders]

The better ones gives a better yield, = more bottles

[Zelwen]

Hi,
The type of press influences the quantity and quality of the final wine. With a better press it is possible to press more grapes losing less quality. The best presses get less dirty during use.

[Spiderlord]

Thanks, time to upgrade all my presses!