Bag in box jig, filler

I wanted to store apple juice in the bag in box. The juice should be at temperature

70-80 degrees of Celsius. So it is difficult to fill in bag in box without harming yourself.

I couldn ´t find any model to help me, just metal tools can be bought via Internet.

The use is as at the picture. Just put the bag in box neck into the tool, hold it there and fill it in.