Just made this mix and suddenly realised the weight of yeast in the kit is 7g however the sachet of safebrew I have is 11.5g, I noticed just before I added it all, think i've put around 9.5g in, have I messed up? Should I try and spoon some off the top or does it not hurt? If it doesn't should I take off the lid and put the rest of the pack in???