I understand how to make Andreas Kalcker's CDS, but I'm uncertain on the size of jar he uses in his video??

Hello everyone:
I'm trying to learn as much as I can about using MMS or CDS. I recently watched Andreas Kalcker's video on how to easily make CDS. I think I have most of it down, but uncertain as to the size of the jar he uses in the video and I didn't hear him mention it in the video. I assume the size of the jar matters. 
andreaskalcker.com/en/cds-protocols/

Any help would be greatly appreciated! Thanks in advance.

Janie