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Specification
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Settings
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Functions
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Troubleshooting
Dimensions
What are the cooking area dimensions?
The cooking area measures 15.2'' W x 12'' D x 9.6'' H.
How much space do I need to embed the oven into a wall or cabinet?
To embed into a wall or cabinet you will need 22.9'’W x 18.9''D x 17.9'’H. Leave 2 inches of space on top and 1 inch of space on each side of the steam oven during installation to ensure adequate ventilation. Failure to do so may cause fire.
Does this oven come with any accessories?
Yes, each oven comes with a 15’’ x 12’’ x 1.6’’ steaming tray, a 15.15’’ x 14.17’’ x 1.42’’ baking tray and a 15’’ x 12’’ x 0.2’’ grilling rack. You can find extra accessories here:
https://fblumlein.com/collections/accessories
Can you use a pizza stone? Which size?
You can use a 12 inch pizza stone for this oven.
How long is the power cord?
43’’ including the power plug.
Power Issue
Will this product work with 220V AC electricity?
This product works with 120V AC, 60Hz which is not suggested to use with conversion plug / transformer.
How much power does the JU3200 use?
1550 watts
Vent
Where does the steam or hot air go while cooking?
The front-cooling air exhaust system of this oven keeps your kitchen cool and comfortable. Steam and heat are recirculated inside the oven while cool air is removed and exhausted above the oven door to keep your walls and cabinets from getting damaged.
Heating Elements
Are the heating elements exposed or covered?
The top heating element is exposed while the bottom element is covered to allow for easier cleanup.
Temperature
What is the highest convection temperature? Does it reach 500 degrees Fahrenheit?
This oven supports 85°F-450°F, but it can not reach 500 degrees Fahrenheit.
Can you adjust the temperature when using the steam mode?
Yes, pause the process with the Start/Pause button while steaming to adjust the temperature. The default time and temperature for Steam Mode is 30 minutes and 210°F. The adjustable time ranges from 5 to 180 minutes (Maximum 3 hours) while the temperature range is 120 to 230°F.
Can you set the top and bottom temperatures independently from each other?
They can't be set differently. If you need more heat for the top of the food, you can put the tray on the higher rack of the oven.
Timer
Does it have a preset timer?
This oven doesn’t have Delayed Start mode.
Boost
I didn’t turn on any Booster, why is Boost displaying on the screen?
Not to worry! Boost is an icon that lets you know that your oven is running. It doesn’t make any changes to the settings you selected.

Water Drain
How does the water drain?
There is a removable drip pan to catch condensated water when the door is opened after using a steam cooking option.
- 1.Remaining water that collects at the bottom can be removed using the included sponge after the oven has cooled down.
- You can also use the Convection function for 30 minutes to dry the inside up.
Steam
How hot does the steaming mode get to?
The default temperature for Steam mode is 210°F and the range is 120°F to 230°F. The adjustment increment is 10°F.
Can steam be used with convection at the same time?
Steam can be used with convection at the same time. You can use the H-Steam function to use convection and steam at the same time.
Bake / Grill
How would you cook toast in this oven? Is there a setting for that?
To make crispy toast, please use preset menu D02 (Default: Convection mode with 390°F working 8 minutes). If you need to toast a bagel, the preset menu C04 can help you (Default: Grill mode with 370°F working 23 minutes).
If you want to adjust your toast manually, the Combi function set for 8 minutes at 330°F can give you perfectly golden-brown toast.
What is the maximum baking or roasting time?
The default settings for the Grill function are 30 minutes/ 350°F. You can adjust from 5 minutes to 180 minutes (up to 3 hours), while adjustable temperature range is 210°F~450°F.
Convection
Can this be used as an air fryer? In what setting?
Convection mode working with the convection fan on the back of the oven which is similar to an air fryer.
How can I make crispy fries with the JU-3200?
Put a layer of tin foil on the grill rack. Toss the fries in oil in a large bowl then arrange the fries on the tin foil. Set 360°F and 20 minutes with Convection mode (the cooking time depends on the amount of the fries).
Combi
What is the highest temp. for steam bake function? Like if you bake French bread, you need high temp >400F with steam.
Combi function which combines High Steam and Convection and Bake, the highest temperature available is 450°F. Steam function, 230F is the highest, and 450F is the highest for High Steam. For baking French Bread, we would like to suggest you can try Convection function if you'd prefer the dryer one, but if you'd prefer a moist French bread, Combi function is the first choice we suggested.
Preheat
How long does it take to preheat to 450-degrees?
The time of preheating depends on the temperature inside and around the oven. It normally takes about 20 minutes to preheat if you are starting from room temperature.
Fermentation
What is the lowest temperature setting for proofing bread dough?
Fermentation function is the best choice for proofing bread dough, the lowest temperature is 85°F.
Descaling
What is descale?
With any appliance that uses water, such as steam iron, descaling is sometimes required to remove any mineral deposit on the working parts to keep the water channels clear. Descale function on this oven helps users to finish the descaling process easily.
The first stage will take 50 minutes . The Descale icon will automatically come on once the oven works for 100 hours of steam cooking. We suggest you fill the water tank with water and white vinegar for a better descaling. Full instructions can be found in the user manual.
Reheat
How to reheat leftover food?
Set lower temperature at certain functions for different foods. For example, use the Steam function to keep the freshness and moistness of dishes, while the Grill function is the best choice for fried chicken to keep it crispy.
Dehydration
Does it have a Dehydration function?
Simply choose E03 on the preset menu to process Dehydration automatically.
Not Hot Enough
What should I do if I want the bottom of the food to be hotter?
The bottom heater is hidden under the stainless steel plate for your safety and for better cleaning. We suggest you preheat the steam oven first, then put tin foil over the food. Please place the tin foil quickly and then close the oven door, otherwise, the heat in the oven will be dissipated soon.
Functions Don’t Work
The specifications say the oven can steam for 180 mins, but after I used it for an hour the water tank only has 1/3 tank remaining (after I filled a full tank of water)?
The water tank is 37.2 Oz which can steam up to 3 hours, but the total steam time depends on which temperature setting is used. We suggest you should refill the water tank after 2 hours while using
H-Steam.
The empty water tank reminder keeps coming up even though I have a full tank of water, what gives?
Please confirm the following points.
- 1. Please confirm whether the water tank is pushed into the correct place. If pushed correctly, there will be a snapping sound.
- 2. If the water tank is placed in but still not working, please pull out the water tank and confirm whether the white tube behind the water tank bracket is connected.
- 3. If the tube is there but not working, there may be a blockage of air in the pump. Please hold the Setting and Return buttons at the same time to start manual pumping, and you will hear a slight water pumping sound from the oven. The water tank will be back to work after several manual pumps.
Water Stains
How to clean up the water stains?
After the machine uses any function with steam, there may be residual water or water marks left on the bottom.
1. Please fill the water tank with water and citric acid (lemon juice or white vinegar will also work) and use the Descale function to remove the stains in the water pipe.
2. And then use the Convection function for 30 minutes (The time setting depends on how much water left) to evaporate the residual water.
3. Please use water with citric acid (lemon juice or white vinegar will also work) to wipe away the water marks.
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