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I have noticed that nearing the end of any long cooks my fec-100 seems to bellow more smoke than at any other time during the cook.
I`m still new to the cooker as I only have about 40 or 45 hours under my belt in terms of cooking hours but the last two or so hours the smoke is so heavy and woody that its very noticable, especially when the neighbours ask if everything is alright as smoke bellows from my garage,
I figure the only things that change after all them hours of cooking at the same temp is the amount of ash that might be collecting in the firepot.
Like mentioned in earlier posts, I clean out the firepot prior to each cook.
I thought that I might try something while its smoking heavily.
Saturday was two briskets and two large racks of beef bones and a grate full of baked potatoes.
There was roughly two hours left in the cook and was smoking heavily, I opened the door, and with a fork I dug into the firepot and stirred up the ash in the firepot in hopes of lowing the level of ash possibly exposing the lower air holes.
Well after stirring the firepot the smoke had all but cleared.
The difference was amazing for the short time left in the cook.
It seems that even after 8 hours of cooking, there was enough ash built up to partially block the lower holes allowing more smoke to build.
I`m not sure if anyone else has this problem of heavy smoke near cooks-end but for me, stirring the pot seemed to improve it greatly.
Any thoughts?
Roger
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Mop,

As your 100 is trying to come up to temp, and then again when the cooler meat is placed in. The fan will blow trying raise the temps. This will produce very little smoke, because the fire is very hot.

But when the cooker is up to temp, and the blower is kind just holding, it will smoke as less air is being blown in.

RandyE
I guess you could test Randy's idea by keeping the door closed and adding 5 or 10 degrees to the cook temp when it begins to smoke heavily. If the smoke thins out then it's as Randy said.

If it doesn't maybe it could be the pellets. Sounds like you're having more trouble with ash than what I see folks on here have.


It would be cool to see a video of the difference between the smoke at the beginning middle and end of the cook so the other owners can tell you if that looks normal to them or not.
ZBO,

When your 100 comes up to temp, and it has been there a while. Does it always have a blaze coming out of the fire pot?

It should only put out the blazng fire when it needs more heat.

Once the meat gets warmed and the interior is good and hot it should kick back and coast. Thats when you will see more smoke.

Around the 225 point it should put out a good amount of smoke. And not so much inteh 300 plus range. It has to work harder in the upper temps.

RandyE

RandyE
I had the heavy smoke problem with my FE-500 at the end of a long cook. I traced it to the pellets I had used. The amount of saw dust contained in the bags was the problem. I checked the difference between those bags and one I got from Eddy and the difference was very noticable.

Also a bunch of us pelletheads took the time to take random handfulls of pellets to see the difference in the size of the pellets. We were gather for a cook at a Marine Base and 3 of us were using different pellets. Check for yourself but some pellets are longer than others.
You make a good point and a rule I made myself a long time ago. When I get close to the end of a bag of pellets, I will either scoop out the remaining whole pellets by hand or just not use the last half to whole pound of pellets in the bag. That way, I keep more of the sawdust out of the hopper.

Plus every couple of months, I will empty the hopper completely of pellets so I can vacumm out any sawdust in there.

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