For wine, if it isn’t included in the kit, I use this from Wilko …
https://www.wilko.com/wilko-wine-stabiliser-30g/p/0022657?gclid=CjwKCAjw3qGYBhBSEiwAcnTRLjTuuUc4wtbJ_re9WmB8_Pzd_VHhcZFOJCNJRTYt31c6HRCo_ckuCxoC77AQAvD_BwE&gclsrc=aw.ds
athumb..
PS
With a “natural end”, the problem is that it...