This unit will not let even a single pellet go to waste. No need of worrying whether you’re out of pellets or not. You can carry pellets at a maximum of 20 pounds, with the digital thermostat ensuring the pellets are being used properly. This saves you loads of cash and gives you smoking food simultaneously without wasting time in refilling pellets.
With the Yoder YS 640 you won’t have to worry about scooping the ashes anymore. This pellet smoker burns the pellets so efficiently that there will be almost nothing left to clean. All you will have to do is empty the ash tray every now and then and wipe down the grates. You can spray the grates with PAM prior to use which makes clean up even easier.
Wood pellets that are tailored for pellet stoves or fireplaces usually contain tree barks and binding agents such as glue. When used in pellet smokers, these wood chips can expel some harmful chemical substances infused with the food. But since the dawn of Traeger pellet smokers, different manufacturers have been producing food-grade wood pellets to be used in pellet smokers.
The biggest cleanup issue is the buildup on the heat deflector under the cooking grates. You'll need good gloves and an apron. On most models, a thorough cleanup means a 30 minute process of taking out the greasy grates and the gooey deflector plate, scraping them and washing them. You should do this when the carbon and grease cover the deflector plate. Stainless parts can go in the diswasher, but I wouldn't do it. That grease is like tar and it could get all over the insides of the dishwasher and hang on for dear life. I use a handheld steamer like the Steamfast SF-320 Portable Steam Cleaner shown here.

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I've been wanting a Yoder for the last year and a half. Finally pulled the trigger on a 640 a couple months ago. Absolutely fantastic. I've been a Weber guy forever and this is my first smoker. This defiantly took my food over the top. My 640 has been incredibly accurate with keeping the heat on the grate to the setting I punch in. Just finished my first brisket and it was fantastic. The only way to go!
As a conclusion, it’s a very good pellet smoker & grill. Main advantage is the sear box that runs on propane, allowing to reach temperatures of up to 900 degrees F. Definitely a very useful feature during cooking. Another interesting feature is Smart Smoke Technology, which allows to create much more smoke while maintaining the desired temperature.
Warranties are an important part of purchasing a new pellet grill because it assures that the manufacturer stands behind the build quality of the product.  It’s just like buying a new car – you want a warranty that will cover the costs of a repair if something happens to go wrong after buying. Depending on the pellet grill that you buy, there is a wide range of different warranties that are included. Cheap pellet grills will sometimes include a short-term, limited warranty that covers next to nothing. A quality manufacturer will be willing to add some years onto their warranties and cover all the components you’d expect (for example, Grilla Grills offers a 4-year warranty with VERY little fine print on the popular Silverbac model). So, if your cheap grill magically makes it past its warranty date unscathed and then something happens to it, you will be left paying out of pocket for the costs of fixing it or replacing parts. By comparison, pellet grills that have a lifetime or long-term warranty will give you more peace of mind rather than worrying about how you will pay for the next component that malfunctions or breaks suddenly.
The wood pellet grill features a dual rack design with a 513 square inch main cooking surface and 187 square inch warming rack. With a 20-pound hopper capacity, the grill has plenty of space for wood pellets to keep grilling during long event and parties when you have many mouths to feed. An automatic pellet feeder makes it easy to maintain the desired temperature, so you can focus on just the grilling itself.  
This is best pellet smoker for the money if you are a newbie but want to cook like a pro. It is super easy to use and allows you to set up the whole system and then walk away. It has an electronic autostart ignition, which means you don’t even have to start a fire. Just plug it in, do a little prep work, add some pellets, and it will not be long before you have some delicious food to enjoy with your family or serve to your friends.
With the traeger, rec-tec or cam chef smokers all seem to burn 1-2lbs per hour. But for a long 18hr brisket it seems like I will have to continue to use pellets the whole time to keep the heat in range over over 200 which will mean I am using almost a 20-40lb bag depending on the time year per smoke. This is even more expensive than the bradley seems even with the wasted briquette. IS this correct or is there something I am missing?
Grill will not maintain temperature with temperature set at 275 the grill temperature will range from 200 to 320 and this continues throughout the entire time it takes to cook the food. Customer service is giving me the runaround and no resolution has been made. I have been on the phone two times and they say that the pellets are not dropping into the screw. I have done everything they have asked me to do and still have same issue.
Is it customer support? I ordered a grill cover(made by a outside vendor in Kansas as well) for my YS640. It ended up with a small leak. I called Don, and by the end of the week I had a brand new one. Also, I was getting ready for my first cook on my brand new YS640, and I invited the whole family over for baby back ribs. I called Joe, and he talked with me on the phone for 20 minutes explaining how the grill worked, what temp to set the pit at, when to rotate the ribs and even which ribs will need to be rotated. Joe was spot on! Best ribs I have ever had!!!
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