Probably a dumb question with an easy explanation, but Im curious: my regular LHB store where I used to go to get my C02 tank refilled closed down. No others around within easy travel distance, but I did find a place that just refills c02 tanks so I decided to go there. In my experience, after filling, my tank is ice cold and covered in frost (too cold to handle without gloves), which i thought was an unavoidable side-effect of liquid C02 -> gas. This fill the tank wasn't cold in the slightest. In fact I wondered if they even filled it, but i weighed it when i got home and it's full. Just wondering why it wasn't cold.