Chasin I do agree with alot you said a few thing no when I worked in a commercial operation I went to clean the walls of the brick a bit and the owner freaked on me!!! LOL
and I remember when I became friends with the chefs/ instructors back in 88 when I took my culinary degree they said never ever clean a smoker. Mr wilhelm would have kicked my butt!!!!! ... I DO however agree and stuff that can be burnt like a burner etc hell yeah keep that clean or at min rig up a drip tray to catch all that stuff..
The way ive designed my smoker my heat and smoke are not in chamber so its really not a issue but I do clean it once a year on the bottom I have a tapered bottom with a grate and hole in the bottom that any juices empty to a pan outside the smoker ignore the pepperoni here lol but you can see what I mean
Also ive tried alot of woods I just like plain old alder I have acres of the crap on property but I have a wood stove that I cut little kindling size pieces into it .. As I have a hard time paying for wood chips especially the amount I would need.
As for smoke I was taught by many to heat first open up the pours of the meat then smoke?? hence why I go slow and slow hams are heated for almost 10 hours and after 5 hours bring temp up to 160 ish for last 5 hours as thats where Ive found the internal temp after that time is about 154 as fat will melt at about 172 so like you said be mindfull not to go past that . smoking is fun once you make a few mistakes and learn from them trust me I have destroyed a bit of my own meat treats a few times...I really thank NOG for really getting me going on all of this
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Wolf I used to think the same thing about not worrying too much about cleaning my smokers but a while back that changed for me. But if you are cleaning once a year that's most likely not too bad as long as you don't see a lot of build up in the smoker of creosote, soot, grease, ash etc..
In the late 90's I was contemplating getting a gov inspected smoking/cooking facilty. I was set up at a home shop very well on a small commercial scale already cause I was smoking a **** ton of fish for native friends of our family (yes I know, they have their own big smoke houses on their reservations
) for our family, for commercial fisherman close to our family, and for co workers back then. I had a 60 amp three phase rotissary commercial smoker. It could fit 800 lbs of meat in it but I mostly used it for fish back then. I got all my ducks in a row to get gov. inspected cert and even swapped our property to city water which cost thousands and thousands back then cause there wasn't a hook up on our street. Long story short is it all went sideways cause of our neighbors. I passed all the stuff, got the courses I needed, etc etc but the city ended up having to disallow it cause of one **** head neighbor. That's the major reason we ended up moving to a very private 5 acre property in the woods lol. No more dick head neighbors to worry about.
So anyways back then I was smoking so much fish and I started getting reports back from people that they started getting an odd bitter smokey flavor with the fish. My wife noticed the same thing. I hadn't eaten any of the last couple batches so I tried some. Yup a very metallic, bitter flavor. So I did some reading up on what could cause that. It was the build up in the smoker. Lot's of info online now about that too but back then the internet wasn't filled with info about it. I ended up talking to a friend that worked at a restaurant that smoked their own meats and he told me yup, creosote, ash, food oils, etc etc will do that. I gutted the smoker, soaked it in oven cleaner with three treatments, power washed it, rinsed it all out, let it heat up for 20 hrs with no food in it then started over again on my next batch of fish. Next batch was perfect, mellow, smooth tasting smoke flavor on the fish. Everyone that got fish on the next batch said it was perfect and no bitter metallic flavor anymore.
I ended up selling that commercial smoker in a food equip auction and that was the end of my semi commercial smoking venture. I almost leased a commercial warehouse to continue it on but I already had another business I was building up at the time to concentrate on so I went that way instead.
Some links about the importance of keeping smokers clean:
“The more smoke the better, I always say!” If I only had a dollar for every time I heard that while standing around your smoker with family and friends. It is a commonly held belief
www.smokedbbqsource.com
Without proper airflow, your plate of barbecue may taste bitter and give you a numb tongue. Poorly ventilated, smoke results in harsh creosote.
www.thespruceeats.com
Out of all the woods I've smoked with I've never yet tried alder. And that's odd for me cause we have acres of it right in our back yard. Somehow that one has escaped me for using. I grew up using certain kinds and have stuck with the ones I like the best and I use different ones for different meats and fish but I am going to try the Alder cause after you mentioned it I read up some on it and it sounds like it must be close to an apple type smoke flavor for smooth sweetness if no bark is on it. I've got a bunch of it dead fall and wind fall on our property. We have friends that are arborists and have their own wood chipper that I use in trade for smoked foods when I want to chip up a bunch of our maple on our property. So I'll do some alder next time too.
Fats will start to melt usually from 130 to 140, not 172. And I've read some studies on some meats and types of fats that will melt lower at 120 to 130.. If cold smoking I'm always way under 90f. Hot smoking it all depends on what type of meat or fish I'm smoking will dictate the temp I will smoke at. Different cuts need different temps.
Some info on the meat science and fat melt temps:
What is meat and how does cooking alter it? Discover the science of what meat is made of, including water, fat, protein, connective tissue, salt, and other minerals. And find out what happens when meat meets heat.
amazingribs.com
As for the meat taking on smoke flavor at different temps differently; I've done so many experiments with this that I just have my own system I follow all the time now. I have found it doesn't matter at all as long as I use the certain amount of pans of chips for how much smoke flavor I want. But I do that at the beginning of my smoking/cooking and stop when I know from past experiance I have used enough smoke. I also go by the color of the meat and what it looks like, how much bark has been built etc.. Fish is very different from pork, beef, cheese etc.. Fish will take on smoke a lot easier than tighter meat tissues of pork, beef etc.
I have found if I wait too long into my cooking to add smoke then I may not get the desired smoke flavors I'm after. But saying that, that's why I usually have 4 or 5 different chips on hand if I want a mild smoke, medium smoke, or heavy smoke flavor.