You need to use DISTILLED water. That is really the only water with 0 total dissolved solids (TDS), which is what scale is. Next closest is reverse osmosis, but there will still be a measurable TDS. In the video you are using "Spring Water," that usually has a pretty high TDS content which is what gives spring water the flavor that people seek.

THANK YOU! Almost bought one! i was convinced to get one by Bosch promoter after my oven purchased! Lucky me and TQVM for this video. I am now worried about the normal oven that I just purchased!

We have also had major problems with our steam oven. We installed the first unit in Feb 2017 and had problems where it erred out and started cycling through the programs (euro convection then descale then back to steam). The steam keeps going into the control panel and at one point during repair for the first oven it was escaping into our cabinet. It is now July 2017 and we are still battling with our Bosch steam oven, except this is our third and final attempt. Haven't been able to use this oven without getting an error every time. Bosch helpline is useless as well. The repair man from our appliance store called and asked for parts at least twice and the second time Bosch didn't send the part he requested, and the third call Ron tried to describe what he was looking for because the part isn't numbered as a replacement part. So that led to the first replacement. Second unit did the same thing. Another unit was requested. Now we have the third unit which isn't working either. All 3 did the same thing. Also had the scaling problem and that was from 7 minutes of use in the first unit. The manuals for most of the steam ovens say not to use distilled water because the units need the minerals found in drinking water. Overall this has been very frustrating, wish we saw this video before we purchased the Bosch units. Do not buy Bosch!

Thank you very much for the review. I actually bought it for my brand new home. But hasn't been delivered yet. I must exchange with something else. Thanks for saving us.

Very good review. I was considering buying this unit but will now reconsider.

I have this unit and I LOVE it! It was affordable for me and I have no regrets. The scaling is not a issue for me because I use DISTILLED water not SPRING Water! I also add 15 minutes to actually allow the oven to get to cooking temperature. The cooking time was pretty accurate for us when the temperature was reached. I think your unit way not have been installed right. I do not have water in the door nor do I have condensation on the unit on the outside. Periodic steam release is normal from the vent. I was disappointed like you not having information on cooking and recipes and ideas from Bosch on how to use the unit. I have had to use trial and error. Hope you get resolution.

Thank you for saving me the trouble of buying one!

A most helpful & informative clip. Thanks

Fantastic review. The debate below on type of water is interesting. In my research I noticed the wolf steam oven says not to use any type of filtered or distilled water, only tap water. The Miele ovens can be plumbed with a direct water connection. Concerned about the 30 minute run time. Some competing units seem to be in the 50 minute range in the user manual.

We have the exact same unit and don't have steam escaping like that at all. I'd say you have a faulty door but it doesn't sound like Bosch will support you. Also, our food cooks really fast in it so I'd say that confirms that too much steam is escaping to cook it in the designated time.

I have owned one of these for nearly a year. The first time I used it to cook a chicken the entire interior stained. It's not grease, it's that the actual metal is stained. Bosch support completely stinks, young people who are not trained answer the line and offer no help at all. Bosch's answer for the problem was "thank you for calling" I sorely regret owning this, I recommend a double convection oven instead.

Thank you for this review. I was considering getting one but am seriously reconsidering.

Thanks for warning

I love mine, its a bit quirky to clean but it works great. I have no scale when I use distilled water?

My unit is like this one. I filled up water inserted the tank properly but it still say water tank is empty, I pulled and pushed in , sometimes worked sometimes showed empty again. Now not working at all, keep saying the tank is empty. It’s sucks.

I have the same problems including the sloppy support from Bosch.

I'm trying to get info from Bosch about the amount of LIQUID descaler to use to descale? I have the same unit in your video. No response from Bosch.Help?

Thank you for your review! We just started using this oven and I have a few questions I am hoping you can help answer: 1. How do you know when descaling is necessary? Is it just based on the descaling prompt message or is there another way to tell that the oven needs to be descaled? 2. I am worried about starting a descaling cycle since I am worried I won't be able to refill the tank and clean out the water in less then 30 seconds. Do you have a trick for doing it? It seems that if I don't do it, I can't use the appliance until the descaling is done properly. 3. I use tap water, but have considered using our filtered brita water. The manual says not to use filtered water however. What is your opinion on using filtered water? Thanks! I hope you are happy with your oven.

Thx for the info

The difference is Gaggenau.

Great Information....

Do you like the replaced oven? Does the steam pour out, does it use up the water dutch slower??

How about milie