this will be my first extraction and I hear about not doing extraction on a humid day .
Nothing to do with humid day. When you extract, you system must be so closed as reasonable that aroma of honey stay inside.Also honey take in wrong aromas.
Often summer day is humid 90% . Can't help.
When all or 80% is capped, it will not ferment. Little bubbles go into honey when you roll frames. You must wait that they rise upp and also little wax rubbish rise to surface. There is often foam on te surface of new honey.
When you put greaseproof paper on the surface, it catch final rubbish and little bubbles.
When you extract it is better to do at once you have taken it away from hives or then you warm honey upp to hive temperature. Cold honey is very difficult to get out or go through the prosess.
In uncappind wax you have 20% honey. You must crush wax and let it flow in warm place.
When you keep honey in store, all containers must be covered.
Some honeys are easy to handdle and others are very stiff.