Extended Cum Storage Before Eating

Burner account for privacy:

So my dom and I are looking to try something new, and part of it is he is saving up his cum over a period of time. After saving it up, he’s going to use me and give me “shots” of his cum to drink as a reward for being a good sub.

One thing I’m curious about is the best and safest way for him to store his cum for a few weeks at a time to prevent it from spoiling while also maintaining texture and a decent taste.

At the moment he just has it stored in his fridge in a container, but I’m wondering if he should be storing it in a different way at all.

Any info is greatly appreciated.