JIAWANSHUN Electric Coffee Bean Cooler with 1.1LB Capacity & Heavy Steel Base - 2-Layer Stainless Steel Mesh for Fast Cooling & Chaff Removal, Home Coffee Brewing Essential Tool 110V

I wasn’t sure what to expect from this appliance. I had read the reviews - some glowing, some not so good, and some clueless (One person downgraded it because they thought it was supposed to roast beans as well as cool them. Good grief.). I use a venerable Fresh Roast SR500 for roasting. I have times and temperatures worked out for different roasts, but it’s still dependent on bean color and estimating how much more the beans will cook even on the roaster’s cooling cycle. The Jiawanshun allows me to stop the roast during the heating phase and rapidly cool the beans. I usually roast 165-180g of beans and the Jiawanshun cools this amount in about 2 minutes. The roast is pretty much stopped when I want due to the very efficient cooling. The cooler is very quiet, simple, easy to use and clean. It would take longer to cool more beans, but for my purposes the Jiawanshun is perfect. I would highly recommend it to anyone roasting batches of a half pound or less. It might work ok for up to a pound, but I have no experience with this amount.

This works good. You do need to stir the beans for a bit so 98% of the chafing are out however, until I can get a new roaster that does this all in one it works exactly how it is suppose to.

Works great. Great value for the product. Easy to use and looks good too.

I didn't think I needed this because my home coffee bean roaster has a cooling cycle. That cooling cycle, however, takes approx. 10 minutes, during which the roast level of the beans continues to coast upwards. After over-roasting a few batches of coffee, I decided to try something different. Instead of trying to build something myself, I bought this coffee bean cooler and I couldn't be more happy with the results! 8oz of beans straight out of the roaster are cooled to ambient temperature in 3 minutes. The machine itself, despite its simplicity, is very well built. The base is made from heavy steel and the fan has a guard on each side to prevent against accidental injury, and it's so quiet that you can barely hear it running. There are two trays - the lower tray has a fine mesh screen in the base to catch chaff and keep it from getting into the motor assembly and blowing everywhere. The upper tray has a larger mesh which allows the chaff to fall through. Operation couldn't be simpler: place both trays on top of the base, turn the machine on, and empty the bean hopper into the top tray. I use a wooden spoon to stir the beans during the three minutes it takes to get them cool, but you probably could just dump them in and do nothing else. I stir the beans to help remove more chaff during the cooling cycle. The included brush makes cleaning the machine simple, and the product was packaged so well that I use the original box for storage. The only thing that would make this better would be to make the upper tray taller, which would allow for more capacity and allow me to stir a little more vigorously without having beans hop out over the sides. It isn't something that is a big issue for me as my roaster has a maximum capacity of 8oz of green coffee beans, but would make the machine a little more versatile and easier to use. Overall, this is a great purchase and I have recommended this coffee bean cooler to several friends. I couldn't be more pleased.

Works great. Cools 500g of Tanzania pea berries quickly. It is a downdraft system so there is an initial amount of smoke out the bottom. Does well with chaff too.

After comparing to similar cooling fans, I found that this is by far the weakest. The capacity is measured by filling to the brim, which is not very practical as some beans will inevitably spill when stirring. The main issue was that it proved to be ineffective for cooling even small batches.

I roast coffee beans every couple weeks. I used to cool the beans with a couple colanders in front of a fan. This device makes it much simpler and much more efficient. What would normally take about 5-7 minutes is reduced to about 3 minutes. Cooling the beans fast is important to preserve the roast quality.

+ Big Fan + Two Trays, one for beans, one for chaff + Fast cooling - 300g batch was a stretch, any stirring action (as instructed) flung beans out - I had to collect some beans from the bottom tray, holes could be smaller in bean tray

This is an essential tool for coffee roasters, to lock in the flavor at the precise point you stop roasting. Simple to use; Load your hot roasted beans into the top and turn it on. The loose chaff falls down onto the fine screen and the beans are cooled by a powerful fan. Solid metal construction, high quality metal screens, very quiet fan. Highly recommend this Coffee Bean cooler!

Ce petit système fonctionne vraiment bien. Il est silencieux et efficace. Pour 64$, ça vaut la peine et ça simplifie vraiment mon processus de torréfaction. Je torréfie des batches de 250g et il y a encore pas mal de place dans le bac pour d'autres grains.

Solid and well made, cools the coffee beans perfectly in two minutes directly from the roaster. Very pleased with this purchase.

I thought from the name of the machine that it would roast and cool coffee beans. It does not roast! It only cools beans. Now I have to pack it up and return it. They need to remove the word roasting. I am required to indicate rating stars so I did as it probably does a good job cooling. At least another review mentioned roasting.

was worried it would be too weak for 1/2 pound roasts...seems to do just fine. can maybe get for cheaper elsewhere, but can't beat shipping within the week form amazon. :)