Apart from Alltech, which starts on Friday, a couple of other events that may be of interest:
On Wednesday at 7.30, Carlow Brewing is launching the first of its 2016 seasonal beers (possibly a red IPA, but I don't know), in The Bleeding Horse.
Also on Wednesday, from 8 to 10, two of the Kentucky Ale brewers and one from Station Works will be doing a Meet The Brewer in P. Mac's.
And on Thursday, Independent Brewing and Wood Quay are launching their new collaboration, a black IPA, in 57 The Headline, from 7.