Currently doing a tweet chat thing. Not sure what it is really, Luddite that I am. I think it means you can ask me stuff and, er, stuff like that. About my new book, The Home Brewer's Guide to Vintage Beer
Heineken H41 - *Lager yeast, Saccharomyces pastoriaus, has long been known to be a hybrid species with Ale yeast, S. cerevisiae, as one parent.* It was only in 2011 that ...
5 hours ago