Actually Ommegang is under Duvel, so I’m pretty sure they use their yeast, which would be 1388. Though it is possible that they use some saison strain for that one.
I’m pretty sure that Ommegang uses their own yeast strain, not the Duvel strain. From what I understand, it’s not available to homebrewers, but they use the same house strain for all their brews so you could culture it from any of their beers.
And that would also explain why the recipe you have doesn’t call for a Saison strain. From what I understand, Ommegang is just using their house strain for Hennepin.
If you want the Ommegang strain, the best source is from Rare Vos or BPA. They use the same yeast but are lower in ABV, so they will yield more viable cells.
I have heard this somewhere. I believe it was on an episode of CYBI, but I’m not sure…
I’ve grown up a pitchable amount from Ommegang bottle dregs before. It’s actually pretty easy as the dregs seem to be more viable than some of the Belgian beers that have traveled further and been stored longer.
It’s interesting to hear that they use spices to mimic different yeasts, as I did not get much character from their yeast. I pitched it into a straight pils wort, so it was a pretty simple beer but not remarkable in any fashion. It attenuated like mad.