Imperial porter not carbonating. Add more yeast or let it be?

I cooked up an imperial porter that came out at OG of around 1.080. I had a lot of yeast through the first week. Even in my 6.5 gallon carboy I found myself cleaning out the airlock several time. I let it sit in the fermenter for just over a month. I primed with slightly less priming sugar than I had intended (4 oz instead of 4.5). It been in the bottle for more than 5 weeks and still hasn’t carbonated. I tried tipping a bottle to get more yeast into suspension. I drank it a few days later with no luck.

The beer tastes sweet. The issue doesn’t seem to be a lack of fermentables. Could it be that the yeast kicked out in the fermenter? Should I add more yeast? If so, how? I have liquid and dry yeast laying around. I could add a little dry yeast to each bottle or I could pour the bottles back into the bottling bucket and add some liquid yeast. (The beer is in EZ-caps, so neither would be a tragedy.)

Or do I just need to be patient?

Any advice would be appreciated.

It should have carbonated by now. So there’s a problem.

Try adding actively fermenting yeast to the bottles. If you have access to syringes this will be a snap.

Don’t poor the bottles into another bucket if you can avoid it. That is a good way to oxidize the beer. If you have some dry yeast around (like US-05) I would activate it in water then use an eye dropper to put some in each bottle. Of course you will have to un-cap and re-cap but that is not a big deal since the beer is not carbonated now.

You did not give us a FG reading. It may taste sweet from a high FG or the lack of carbonation.

What temperature are the bottles sitting at? Before you try adding yeast, you might want to see if warming them up will get them to carb.

+1 Based on the gravity and time in the fermenter I would think that there should be enough yeast left to carbonate.  Although since it’s in EZ cap bottles throwing a little more dry yeast in each bottle and warming them up wouldn’t be too hard.

Thanks all for the good advice.

A little more info… My apartment runs warm but the temp is a pretty stable 75-77. Final gravity was 1.018.

I have some Nottingham dry yeast in the fridge that I can add. How long should I wait for it do its magic. Another week or two?

At those temps it certainly should have carbed up if it was going to.

And yes, two weeks is about right.  Maybe less considering how warm it is.