Introduction
Thank you for purchasing the Mayer 750g Bread Maker MMBM12. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new appliance. Please read these instructions thoroughly before first use and retain them for future reference.
Important Safety Instructions
- Always ensure the bread maker is placed on a stable, heat-resistant surface.
- Do not immerse the appliance, power cord, or plug in water or other liquids.
- Keep children and pets away from the appliance during operation.
- Unplug the bread maker from the power outlet when not in use and before cleaning.
- Do not operate the appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner.
- Avoid contact with moving parts.
- Do not use attachments not recommended by the manufacturer.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Extreme caution must be used when moving an appliance containing hot oil or other hot liquids.
- Do not use the appliance for other than intended use.
- The appliance is not intended to be operated by means of an external timer or separate remote-control system.
- This appliance is for household use only.
Product Components
Familiarize yourself with the parts of your Mayer MMBM12 Bread Maker.

Figure 1: Overview of the Mayer MMBM12 Bread Maker. This image displays the white bread maker from a slightly elevated front angle, showing the control panel with its digital display and various function buttons, along with the viewing window on the lid.
- Lid with viewing window
- Control Panel (Display, Program buttons, Start/Stop)
- Baking Pan (removable, non-stick)
- Kneading Paddle (removable, non-stick)
- Measuring Cup
- Measuring Spoon
- Housing
- Non-slip bottom feet
Setup and First Use
Unpacking
- Carefully remove the bread maker and all accessories from the packaging.
- Remove any packaging materials, stickers, or labels.
- Inspect the appliance for any damage. Do not use if damaged.
Cleaning Before First Use
- Wash the baking pan and kneading paddle with warm, soapy water. Rinse thoroughly and dry completely.
- Wipe the exterior of the bread maker with a damp cloth. Do not immerse the main unit in water.
Initial Burn-in (Recommended)
To eliminate any manufacturing odors, it is recommended to run the bread maker empty for a short cycle.
- Place the empty baking pan (without ingredients) into the bread maker.
- Close the lid.
- Plug the appliance into a grounded power outlet.
- Select a basic baking program (e.g., "Basic Bread") and press "Start/Stop". Allow it to run for approximately 10 minutes.
- Press "Start/Stop" to cancel the program, then unplug the appliance and allow it to cool completely.
- Ventilate the area during this process.
Note: A slight odor or smoke may be present during the first use; this is normal and will dissipate.
Operating Instructions
Control Panel Overview

Figure 2: Detailed view of the control panel. This image highlights the digital display showing "2:55", program selection buttons, crust color options (Light, Medium, Dark), loaf size options (500g, 750g), and the Start/Stop button.
- Display: Shows program number, time remaining, and selected settings.
- SELECT Button: Used to cycle through the 14 available baking programs.
- COLOR Button: Adjusts crust darkness (Light, Medium, Dark).
- WEIGHT Button: Selects loaf size (500g, 750g).
- PRE-SET Button: Sets the delay timer for delayed baking.
- START/STOP Button: Starts or stops a program. Press and hold for 3 seconds to cancel a program.
Baking Programs (14 Functions)
The Mayer MMBM12 offers 14 pre-programmed functions for various bread types and doughs:
- Soft Bread
- Sweet Bread
- French Bread
- Graham Bread
- Rapid Bake (1 Hour)
- Gluten-Free Bread
- Multigrain Bread
- Buttermilk Bread
- Soft Cake
- Mix Dough
- Ferment Dough
- Bake Only
- Yogurt
- Jam
Basic Bread Making Steps
- Prepare Ingredients: Measure all ingredients precisely. Add liquids first, then dry ingredients, with yeast last, ensuring it does not touch liquids or salt initially.
- Place Pan: Insert the baking pan with the kneading paddle attached into the bread maker.
- Add Ingredients: Carefully add ingredients to the baking pan in the order specified by your recipe (typically liquids, then dry, then yeast).
- Close Lid: Ensure the lid is securely closed.
- Select Program: Press the "SELECT" button to choose your desired program (e.g., "Basic Bread").
- Choose Loaf Size: Press the "WEIGHT" button to select 500g or 750g.
- Select Crust Color: Press the "COLOR" button to choose Light, Medium, or Dark crust.
- Start Baking: Press the "START/STOP" button to begin the program. The display will show the remaining time.
- Delay Bake (Optional): To use the delay timer (up to 15 hours), set your program, loaf size, and crust color, then press the "PRE-SET" button to adjust the delay time. Finally, press "START/STOP".
- End of Cycle: The bread maker will beep when the program is complete. It will automatically enter a 60-minute "Keep Warm" function.
- Remove Bread: Unplug the appliance. Using oven mitts, carefully remove the baking pan. Invert the pan to release the bread. If the kneading paddle remains in the bread, remove it carefully with a non-metallic utensil.
- Cool Bread: Allow the bread to cool on a wire rack for at least 30 minutes before slicing.
Care and Maintenance
Cleaning
- Always unplug the bread maker and allow it to cool completely before cleaning.
- Baking Pan and Kneading Paddle: Wash with warm, soapy water. Avoid abrasive cleaners or scouring pads that can damage the non-stick coating. Rinse and dry thoroughly.
- Exterior: Wipe with a soft, damp cloth. Do not use harsh chemicals or abrasive materials.
- Interior: Wipe the interior of the baking chamber with a damp cloth. Remove any crumbs or residue.
- Do not immerse the main unit in water or other liquids.
Storage
Ensure the bread maker is clean and dry before storing. Store in a cool, dry place, away from direct sunlight and moisture.
Troubleshooting Guide
| Problem | Possible Cause | Solution |
|---|---|---|
| Bread does not rise | Expired yeast, incorrect water temperature, too much salt/sugar, incorrect flour type. | Check yeast expiration date. Use lukewarm water (38-43°C). Ensure correct ingredient measurements. |
| Bread is too dense | Too much flour, not enough liquid, yeast inactive. | Measure ingredients accurately. Ensure yeast is active. |
| Bread collapses in the middle | Too much liquid, too much yeast, high humidity. | Reduce liquid slightly. Reduce yeast slightly. |
| Kneading paddle stuck in bread | Normal occurrence. | Allow bread to cool slightly, then carefully remove the paddle with a non-metallic utensil. |
| Bread maker does not turn on | Not plugged in, power outage, faulty outlet. | Check power connection. Test outlet with another appliance. |
If the problem persists after attempting these solutions, please contact customer support.
Specifications
- Model: MMBM12
- Brand: Mayer
- Capacity: 750g
- Functions: 14 Baking functions (including 1-hour rapid bake)
- Delay Timer: Up to 15 hours
- Keep Warm Function: 60 minutes
- Memory Function: 15 minutes
- Material: Metal housing, non-stick baking pan and kneading paddle
- Product Dimensions: 31 x 24 x 27 cm
- Item Weight: 4.22 kg
Warranty and Support
For warranty information, product support, or service inquiries, please refer to the warranty card included with your purchase or visit the official Mayer website. Please have your model number (MMBM12) and proof of purchase ready when contacting support.
Manufacturer: Mayer





