ok i've got a normal - plastic home brew kit and am using store bought
worts...22.5L

have had some success with the killkenny mix (ie using conversion kits and
hops bags) and red back kit also ....my temps fluctuates a bit as am putting
it in front of the heater at the moment (in wa) but stays well within limits
ie 18-30c ...my questions are

is it ok the stir (not opening lid) or shake the fermenter during ferment ?
(i have found this helps to speed the fermentation)

is it better to not shake the finished brew before bottling or does it not
matter ? (i presume as the brew will settle in the bottle anyway and the tap
is at the bottom) ..i'm not filtering the finished brew before bottling


TIA