I think I know which place you are talking about. I thought about it but my concern is by the time you use all 50ml how unsterile does it get as you keep sticking it over and over. What is the longest some of you have used them before finishing it all?
You can transfer the contents of the 50ml jug to 20 or 10 ml vials to save wear and tear on the 50's cap. You can pick up sealed, sterile vials fairly cheap.