Much ado about nothing...

I told you it was impossible I had an infection in my Zotte Stella beer! Well, here are the results of the test fermentations.

It is clear that the ardennes yeast attenuates better then the Duvel yeast, so a lower FG for the Ardennes version made sense. But surprisingly, the yeast I took from my fermentation ended pretty much where the ardennes yeast ended. Much higher then the saison yeast. Conclusion: I took the right strain.How to explain the low FG then? I opened a bottle of the beer and tasted it. It tasted a bit different, but that is just because I used strange hops (New-Zealand Motueka). No sign of infection though. Puzzled, I took a new reading and guess what: 1.009! Perfectly within range. It seems that the only thing that was wrong, was my first FG reading. Problem solved: there was no problem after all!