Longest fermentation ever

How long has your longest fermentation taken? I mean from pitch to gravity readings settling for 3+ days. My current brew I used safale be-134 (Belgian saison), and the fermentation took over 3 weeks! It consistently and slowly kept going down. My gravity curve is a nice smooth line, no jumps at all. On top of it, I got 97.5% attenuation. It was nuts! I DID use cane sugar in the boil, one pound for a 6 gallon brew (to thin and dry it out), but I never saw this happening.

I know the yeast says high attenuation and slow fermentation, but this was something unexpected! My final abv is much higher than I thought, I’m just hoping it doesn’t taste “hot”.

A Belgium Golden style?
I don’t recall having one last that long, but just sitting in the fermenter, about that time.
If there was plenty malt as a base BEFORE you added the sugar, it’ll be fine. Duval Golden Ale, the plain one, is my top shelf brew.
Sneezles

I believe it. What was the starting gravity ?

OG was 1.08.

FG took 25 days to reach, then I waited the 3 extra days to prove it’s done. FG is 1.001, for a abv of 10.37% and an attenuation of 98.75%.

My efficiency wasn’t the best, hovering around 69-70%. I had tried to brew this beer a few weeks earlier, and my crush size was just too small… Stuck mash that I eventually worked through, THEN couldn’t get the liquid out of the boil kettle due to clogged valve ports. So when I brewed it the second time, I definitely increased my crush size to a number higher than I’d like, just to be safe. Meaning, I definitely used more grain than a normal recipe would have called for in anticipation of lower efficiency.

I didn’t expect this beer to get above 9%, I was planning on high 8’s. I never expected the gravity to fall under 1.013 or so.

a beer that big I wouldn’t even think about packaging before 3 weeks

Mine was 3 weeks making a honey wheat. Seems like honey takes forever to ferment, which likely due to a lack of minerals.