I had a pretty long hold planned for yesterday’s brisket. It finished at 6AM, and our shindig was scheduled for 4PM. I didn’t want to use the indoor oven set to 170° because I didn’t want to heat up the kitchen and I’ve never done that before and didn’t want to dry out a really jiggly brisket, so I went with the passive approach.
Outdoor temp yesterday was mid 70°s all day, with a very light breeze. 196° Brisket, wrapped in 6 layers of foil (4 from the foil boat + 2 to ensure a good seal) went into the blanket,

stuffed into one of these,

which was stuffed into this (a Yeti ripoff):

When I say stuffed, I mean stuffed. Like forcefully, both hands. I covered the last inch or so with towels, closed the lid, and went about making ribs, shucking corn, prepping sides, etc.
At 4PM, I opened the lid, removed the brisket, and checked the temp through the foil. My FireBoard Spark inserted randomly about a dozen times read between 143° and 148°. Thin, thick, wherever I measured, it was pretty even. I’m not worried about 143° vs 145° over that short a time span, it’s going to start dropping anyhow right away, and it’s getting eaten right away, too.
So it lost 50° in 10 hours. But that’s not the blanket alone, that’s the blanket inside a thermal bag, inside a cooler designed to transport human organs.
I dunno. It worked, but I’m not impressed with it having any extra ability over any other insulated thing. I would probably get the same result using the free insulated bags that come with a lot of mail order meats: SRF, Creekstone, Click Akayushi, etc. And honestly I didn’t expect to be amazed. Amazed would have been readings of 180° or so! But I’ll be honest, I was expecting 165°ish.
On the other hand, I now know I can reliably hold brisket for 10 hours this way, which is a really good thing to know. And you can, too, with the proper tools.
Outdoor temp yesterday was mid 70°s all day, with a very light breeze. 196° Brisket, wrapped in 6 layers of foil (4 from the foil boat + 2 to ensure a good seal) went into the blanket,
stuffed into one of these,
which was stuffed into this (a Yeti ripoff):
When I say stuffed, I mean stuffed. Like forcefully, both hands. I covered the last inch or so with towels, closed the lid, and went about making ribs, shucking corn, prepping sides, etc.
At 4PM, I opened the lid, removed the brisket, and checked the temp through the foil. My FireBoard Spark inserted randomly about a dozen times read between 143° and 148°. Thin, thick, wherever I measured, it was pretty even. I’m not worried about 143° vs 145° over that short a time span, it’s going to start dropping anyhow right away, and it’s getting eaten right away, too.
So it lost 50° in 10 hours. But that’s not the blanket alone, that’s the blanket inside a thermal bag, inside a cooler designed to transport human organs.
I dunno. It worked, but I’m not impressed with it having any extra ability over any other insulated thing. I would probably get the same result using the free insulated bags that come with a lot of mail order meats: SRF, Creekstone, Click Akayushi, etc. And honestly I didn’t expect to be amazed. Amazed would have been readings of 180° or so! But I’ll be honest, I was expecting 165°ish.
On the other hand, I now know I can reliably hold brisket for 10 hours this way, which is a really good thing to know. And you can, too, with the proper tools.








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