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A happy accident with lump in the PBC--

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    A happy accident with lump in the PBC--

    So after reading all the posts about putting pulled chuck roast in chili (and swapping red wine for beer in the recipe) I have been itching to try it. Since I have family coming in later this week and we are having a nice cold snap down here I figured now was the time.

    I stopped by Sam's on the way home and picked up 2 very nicely marbled chuckies with a total weight of about 5.25 lbs (and a medium priced bottle of Cabernet) I headed home to get things going.

    I have been using lump coal in the basket of the PBC for a while now and am very used to its higher cooking temps vs. Kingsford Blue, but this time kinda of blew me away. My normal routine is to arrange the large pieces of lump in the firebasket first, then place the medium pieces around the large ones and finally fill in all the empty space with the small pieces. Since I had neglected to buy a couple of new bags of lump, all I had was three nearly empty bags with just small pieces of lump so I decided to just use them. To define "small pieces" a bit better I'd say most of the pieces were just large enough not to fall through the expanded metal on the bottom on the firebox - yes - that small.

    I filled my firebox about 3/4 of the way with the small pieces of lump and my mini-chimney with the usual 40 briquettes of Kingsford and lit 'er up.

    I let the hot Kingsford sit on top of the unlit lump with the PBC lid completely off for about 10 minutes as usual until the whole firebox had a nice orange glow. I added my cherry and pecan chunks to the firebox and put the 2 chuck roasts on the grate (with PBC Beef Rub - mmmmm) and closed the lid.

    Up to now things had gone completely normal and according to plan. I am totally used to seeing the PBC jump up to 300 and then settle down to 250-265, but this time I had to do a double-take. The PBC temps jumped straight up to 350 and help for like 20 minutes. It finally "settled down" to about 315-325 after a half hour or so. It finally occurred to me that packing all of the (near particulate) small pieces of lump was the cause. It was like packing the PBC with fine grains of gunpowder - it all lit up at once and took off like a freaking rocket!!!!

    Instead of the usual 4.5 to 5 hours to the meat up to 170 degrees, it only took about 3 hours and 15 minutes. By then the PBC was down to a modest 270. I wrapped both chuckies in foil with several ounces of beef broth and it only took another hour to get the IT of the meat up to the desired 195-200!! After I removed the meat totally and put the lid back on the PBC kept chooglin' along at 290-300 for a few more hours.

    I went to bed before the chuckies cooled enough to be pulled, but the wife woke me up out of a sound sleep to taste it when she pulled it. She swore (and still swears) the pulled beef was better than my pulled pork --- now that is a BOLD statement!!!

    Anyway this new knowledge will help anytime I want to do a PBC cook on WARP speed with sustaining temps of 300-325. Thankfully I was using a pretty tolerant cut of meat and not something more dainty like chicken or turkey -- that could have been a bad deal for sure.

    So for future cooks I'll keep this in mind - definitely a good nugget to tuck away.

    I will also be much more careful when loading up the firebox with lump and be sure to mix large, medium and small pieces and to only fill with small if I want a hot, hot fire.

    I am assuming many of you old pros that use lump know this secret, but this was news to me! Thankfully good news on this cook, but it could have very easily gone bad had I selected a different meat or cut of beef than chuck roast.

    #2
    Too funny. Donut shaped small lump would definitely give off a sustainable hot burn.

    Comment


    • HC in SC
      HC in SC commented
      Editing a comment
      Man - at first I started checking the lid to make sure it was on, then the rebars -- then I was about to check if there was a hole rusted out in the bottom before it occurred to me what I had done. Knowing is 1/2 the battle home nugget -- and now I know!

    • Jerod Broussard
      Jerod Broussard commented
      Editing a comment
      I have my lid cracked right now with 3 butts jammed in there running 309. I hung them at 0512 and went hunting and had the Auber set for 228 (it was running a little below the Mav. and I wanted it to just maintain). Came back it was at 228 and the meat at 153. Perfect time to crack the lid and amp things up.

    #3
    I do 2.5 lb chuckies all the time on my PBC with an ave PBC temp of 270-280 using Kingsford Original. It usually takes 3.5 hours to get to 180-190 degF internal to wrap and then 1 more hour to get to 207-208, perfect pulling temp. I cambro them for 1-2 hours

    So total time in smoker to get to 208 degF is 4.5 hours, which is what your time was, HC in SC . Does that mean that your lump usually runs cooler than this time for your other cooks?

    Also, what type of lump do you have? I still have just over a bag of lump: one bag of Rockford Missouri Oak Lump and a bit of Ozark Oak Lump in another bag. When I tried using the Ozark Oak for chicken I had a hard time getting the temp high enough. The next time I mixed Ozark Oak and Kingsford Blue and had an easier time keeping the temp 325 or higher. I'd like to use up those bags of lump but am a bit skittish about them since I know how well KBB or KCompetition do in my PBC.

    Kathryn

    Comment


    • HC in SC
      HC in SC commented
      Editing a comment
      Typically when I use a mix of large, medium and small pieces of lump I only hit highs of like 305 or so with a settle down temp of about 250-260. I really haven't timed chuck roast cooks before, but would take a WAG that is usually 1 hour more than this time. With initial temps using nothing but a basket full of tiny lump pieces this time at 350 and a settle down of 315-325 the 2 chuckies I did the other night took a total of 4 hrs and 15 mins. I decided to mark time when I saw the initial temp blast off. The total pre cooked weight of both roasts was 5.19 lbs.

      I used the bottom of 3 bags of lump. 1 bag was Cowboy brand and the 2 others are a brand I found at Publix called Natural Hardwood Flavors - or something like that. I have also used the Publix Greenwise lump with good success.

      Camping World here in N. Charleston carries B&B hat Jerod recoco,ends, but only in the smallest bags at a premium price. I have heard of Ozark brand, but have not seen it available for sale in my area.

      When I do turkeys on the PBC tomorrow I think I will go with 100% Kingsford. Last time I used lump with the hanging turkey the bottom of the breast nearest the firebox was done way before the legs and dark meat, so I think dropping temps slightly with Kingsford only will help sort that problem out.

    • fzxdoc
      fzxdoc commented
      Editing a comment
      Thanks for that info, HC in SC , good to know. I usually do 4 chuckies at at time, each about 2.5 lbs, and the total time is always about 4.5 hours start to finish (not including faux cambroing). Now I understand why yours typically take longer, since you smoke them at 260ish and I smoke at 275ish. So in that respect, lump and KBB take about the same time, as long as the pit temps are the same. Thanks for that insight.

      Kathryn

    • HC in SC
      HC in SC commented
      Editing a comment
      I am still getting my sea-legs with lump - this post for example. Other than th higher temps, I love the low ash of lump. Pitboss, who is only 3 hours or so from me up in Charlotte suggested Hasty Bake which he can get, but no dice for me here in the Charleston area. The best I have able to get my hands on is this Natural Wood Flavors brand with the Publix Greenwise a close 2nd, but more expensive. I picked up a big bag of Cowboy brand from Wally World to try and it wasn't terrible. The biggest strike against Cowboy is that it seemed like 1/2 the bag or more was all small pieces to dust.

      I will know nest time that if I only have tiny pieces at the bottom of the bag not to fill the entire PBC basket with it unless I want sustained 325-350 temps. Now that I think about it, the tiny pieces of lump would be almost ideal for a smokenator (maybe a SNS?). The smokenator ins notorious for not holding enough coals and being a PIA to keep temps up. Two problems solved with one solution - well, theoretically anyway.

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