I am planning on making eggnog for the first time. I am from Australia where eggnog is not really a thing, and living in the UK where that still seems to be the case. This means I haven't grown up seeing how eggnog gets prepared and stored.  I am aware that some recipes of eggnog are made to be stored and aged for a week or more, sometimes a month or even several months. I plan to make some tomorrow to have on boxing day (so 14 days). If I were to make eggnog to be consumed in a day or two I imagine I'd just store it in a plastic jug, but what should I be using if I were to store it for longer?  The eggnog recipe on Alton Brown's website mentions storing it in glass jars. Should I be using mason jars, or jam jars with screw-on lids, or is either fine? Are there better/worse answers? 
Cooked or Uncooked eggnog is a safety decision.In US you get pasteurised eggs generally, unless you are in a raw food store or something. With pasteurised eggs you can use then raw in recipes without worry. In some other countries (like in India where I am now) eggs are not pasteurised. So to kill the salmonella etc, it is required to bring the eggs to above 160F in recipes. This you can see in Tiramisu recipes also where it similarly starts with a custard. 