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Question: I just purchased the Bosch, and have made about 3 batches of bread, but it sounds like it's having a hard time kneading my dough. Is that normal?
Document: Rather than kneading 'againstAt' the bowl with a hook, it 'squeezes' the dough between the 'hooks' and the bowl. A small distinction but essential knowledge because this machine does NOT like dry dough mixtures! This made for some brick like loaves at first.Once you understand this, WOW what a bread kneading monster this is! We usually make 2 loaves at a time (probably 3-1/2 of a normal loaf) and this thing does a masters job of it.
I have had my bosch for several months and I love it. It does great for double batches of bread, tripple batches of pizza dough and cookies. I have the cookie paddles and the scrapers also. Great machine. Quick easy clean up. The bowl comes apart for easy clean up. Mixes better than my Kitchen Aid (not made like they used to) that only lasted two years.
I am giving this mixer a five star rating because it meets my primary needs . . . effectively mixing large batches of dough. This is not to say that the machine is without its quirks and issues, but if you are a bread maker, and need something with the horsepower needed to make big batches of dough, this machine is for you.Many of us have learned the hard way that the new Kitchenaids do not have the reliability and durability of those made 20 years ago.
Before I bought the Bosch Universal Plus Kitchen Machine, I had never baked anything before. My wife had always done the cooking and now I regularly turn out various breads with hard to mix whole wheat without out any problem. I sometimes bake 9 loaves of whole wheat banana bread or zuchini bread in an evening and freeze the extra ones. The mixer handles 3 loaves at a time without any problem. I also regularly make three loaves of regular whole wheat bread in a batch.
It screams like a banshee when trying to do two loaves of bread and gets hot and I'm afraid I'm going to ruin it. I got my Bosch mixer and made 4 loaves of very hearty whole wheat bread. I only turned the mixer up to the 2nd speed (out of 4) and it mixed the bread very well without any problems whatsoever. It never got hot or sounded like it was straining too hard.
This machine really handles the dough well. My bread rose so high from having a nice gluten formation from the kneading, that next time I'm going to omit the little extra the recipe calls for. Also made a nice pizzelle dough using the beaters. The machine isn't very loud, as I expected it to be. Wasn't bothersome at all. Very easy to take apart and clean. I would advise watching some youtube videos to see it in action.
I've been baking large batches of bread for 15 years. I've worked my way through 3 Kitchen Aids each time going to the larger model and ending with the "Professional" model. Each one lasted only about a year before the gear mechanism broke. Over the last 10 years or so I've used an Electrolux which is very sturdy and produces good bread but needs to be watched over and is somewhat of a pain to clean. I recently gave my Electrolux to my daughter and bought a Bosch.
I thought long and hard about buying a Bosch before I finally did it. I have not been disappointed. If you bake a lot, don't bother with the Kitchen Aid. Invest in a Bosch. I used to make bread in my mom's Kitchen Aid and it always took a while to get things to mix, and you have to scrape the bowl a lot. I was so stunned when I made bread in my Bosch for the first time.
The place I purchased the mixer from uses 2 of these mixers and routinely mixes 10lb batches per mixer weekly for her bread store!! Now, if a mixer can operate for years doing 10lbs batches of dough weekly and not die is something I want!This mixer is a workhorse! The first time I turned it on, I was amazed at how powerful it sounded! You can mix from as little as one egg white to 10lbs of dough in this baby!
I went between this n a kitchen aid for a long time. Reason I went for the Bosch is bc 1. It holds up way better then the kitchen aid my MIL has hers from her mom n it works great its over 25yrs old possibly older then that her mom got it from a garage sale 2. It's made for making bread vs cakes, cookies but you can still make those things w a Bosch. 3.
Answer: What kind of flour are you using, and how much?  How stiff is the dough?  I have a Bosch, and have been using it for almost four years.  My typical recipe flour-to-water ratio is 6 cups of water to around 14 cups of flour, 10 of which are King Arthur white whole wheat and four of which are regular white flour.  Usually, it only sounds strained when I have added the final few cups of flour, which I only do in the last few minutes.  Hope this helps!