Storing BLC / Storing it cold

[Virginia_Ranger]

In an effort to be more on top of cleaning my lines I am thinking about storing two smaller kegs I have, one filled with BLC and one filled with Starsans (Distilled Water solution) in my keezer. If I did this I was wondering if:

1. Does BLC hold up for long term storage in a keg? Probably refresh it once every 1-2 months.

2. Would the BLC be effective cold?

Thanks!