I have just started brewing for my first time and have one of these all in one starter kits see here (lager)
The instructions were not terribly clear or I misread (more likely) and didn't realise I needed to add the bubbler airlock to the top of my tub after I mixed everything together.
I'm into day 4 of fermenting now and have just added the airlock with water in. I have read you don't necessarily need an airlock but most people use them as an insurance, and I'm hoping I'm not too late in the stage to add it.
Also, I have noticed a small layer of foamy throth forming on the top of the brew in my container, is this normal? The instructions with the kit mentioned small bubbles will cease to rise after 4-6 days but I can't tell if its actually bubbling or not because of this foam layer, or do they mean bubbles ceasing to rise in the airlock?
So I'm just really needing advice, on what I should do next please. I don't want to bother kegging if I have screwed this up and should just start over.
Also, I have my setup in my garage right now, and temperature is reading at 18 °C so probably a little on the cool side?