48 hours after starting my very first batch of elderflower champagne (60 litres), I have the dreaded nothing happening situation. So I opened a packet of Russian bread yeast, since no brewing stuff is available, and i'm in a bit of a flap as it doesn't smell like yeast at all, it smells sweet, but my friends here have assured me it is bread yeast. The packet says to mix it with warm water to get it going, but as per the advice on YouTube videos, I have sprinkled just a little pinch in (after parting the flower heads). My question is: should it still start working, as the brew is not as warm as what the instructions for it say?