1. Introduction
Thank you for choosing the MERIOR 4L Electric Composter. This appliance is designed to efficiently transform kitchen food waste into dry compost fertilizer, reducing household waste volume by up to 90%. Featuring an intuitive LED display, auto-cleaning function, and odor-free operation, this composter provides a convenient and environmentally friendly solution for managing organic waste.
Please read this manual thoroughly before operating the composter to ensure safe and optimal performance. Keep this manual for future reference.
2. Safety Information
- Always ensure the composter is placed on a stable, flat surface.
- Do not immerse the main unit in water or other liquids.
- Keep hands and utensils away from the internal blades during operation.
- Unplug the appliance before cleaning or maintenance.
- Do not operate the composter if the power cord or plug is damaged.
- Ensure proper ventilation around the unit during operation.
- This appliance is for household use only.
3. Package Contents
Verify that all items are present in the package:
- 1 x MERIOR Electric Kitchen Composter Unit
- 1 x Inner Bucket
- 2 x Activated Carbon Filters
- 1 x Activated Carbon Packet
- 1 x User Manual (this document)

Image: All items included in the product package: the electric composter unit, one inner bucket, two activated carbon filters, one activated carbon packet, and the user manual.
4. Product Overview
The MERIOR Electric Composter is designed for ease of use and efficiency. Key features include:
- 4L Capacity: Accommodates daily food waste, reducing its volume by 90%.
- Smart Control Display: LED panel with 3 composting modes, one-click auto-cleaning, and time reminders.
- Powerful Churning System: Six robust blades process food waste into scraps within 3-6 hours.
- Odor-Free Operation: Equipped with two activated carbon filters to absorb odors.
- Automatic Cleaning: One-button cleaning for the bucket and blades, which are also removable and dishwasher safe.
- Quiet Operation: Operates at less than 40dB.
- Intelligent Temperature Control: Fermentation mode maintains 113-125°F for optimal organic fertilizer formation.

Image: The MERIOR 4L Electric Composter, designed for kitchen countertops, shown with a pile of dry compost fertilizer and various food scraps, illustrating its function.

Image: An expanded view of the smart control panel, detailing each button's function: Time Remaining, Filter/FMT reminder, Self-cleaning Mode, Automatic Mode, Manual Mode, and Power Button.

Image: A visual representation of the composter's 4-liter capacity for daily food waste and its ability to reduce waste volume by 90%.

Image: A close-up image of the composter's internal churning system, featuring the six blades responsible for grinding food waste.
5. Setup
- Unpack: Carefully remove all components from the packaging.
- Placement: Place the composter on a flat, stable, and heat-resistant surface in your kitchen or desired indoor/outdoor location. Ensure adequate space for ventilation.
- Insert Inner Bucket: Place the inner bucket securely inside the main unit.
- Install Filters: Ensure the activated carbon filters are correctly installed in their designated compartments to ensure odor-free operation.
- Power Connection: Plug the power cord into a grounded electrical outlet.

Image: The composter displayed on a kitchen countertop, highlighting its compact design and providing dimensions (335mm L x 277mm W x 338mm H) for easy placement.
6. Operating Instructions
6.1 Composting Process (3 Steps)
- Fill: Open the lid and place your food waste into the inner bucket. Do not overfill beyond the maximum fill line.
- Transform: Close the lid securely. Press the desired composting mode button on the LED display. The composter will begin processing the waste.
- Recycle: Once the cycle is complete, the dry compost fertilizer can be mixed with garden soil for plant nourishment.

Image: A visual guide demonstrating the three steps of composting: 1. Filling the composter with food waste, 2. Activating the transformation process via the control panel, and 3. Recycling the resulting dry compost with garden soil.
6.2 Composting Modes
- Auto Mode (A): The composter automatically determines the optimal processing time based on the waste load.
- Manual Mode (M): Allows users to select a processing time of 1, 2, or 3 hours, depending on the type and quantity of food waste.
- Clean Mode: Initiates the automatic cleaning cycle.
6.3 Acceptable Food Waste
The composter can process a wide variety of organic materials:
- Food leftovers, plate scrapings
- Fruit and vegetable scraps, peels
- Staple foods (bread, pasta, rice, potatoes, cereals, oats)
- Coffee filters, grounds, and tea bags
- Soft bones (fish, chicken, small pig bones)
- Dairy products (cheese, yogurt)
- Houseplants, plants, and flowers
- Meat scraps
- Rinds (watermelon, melon)
- Nuts
- Yard trimmings
- Soft-shelled items (eggs, shrimp)
For best results, cut larger items into smaller pieces before adding them to the composter.

Image: Examples of food waste suitable for the MERIOR Electric Composter, including staple food, seafood, eggshells, yard waste, vegetable & fruit scraps, coffee grounds, degradable kitchenware, and meat scraps & bones.
7. Maintenance
7.1 Automatic Cleaning
After each composting cycle, you can use the one-button automatic cleaning function. Add water to the inner bucket (do not exceed the max fill line) and select the 'Clean' mode. The composter will heat and clean the bucket and blades.

Image: An internal view of the composter illustrating the automatic cleaning function, highlighting water circulation for heating and cleaning, and overheat protection.
7.2 Manual Cleaning
The inner bucket and blades are removable and dishwasher safe for thorough cleaning. Always ensure the unit is unplugged before removing components for manual cleaning.
7.3 Activated Carbon Filter Replacement
The composter uses activated carbon filters to eliminate odors. The LED display will provide a reminder when it's time to replace the filters. Refer to the 'Filter/FMT' indicator on the control panel. Replace filters as needed to maintain odor-free operation.

Image: A transparent view of the composter demonstrating the airflow and the activated carbon filter's role in absorbing odors, preventing insects and houseflies.
8. Troubleshooting
- Composter not turning on: Ensure the power cord is securely plugged into a working outlet. Check for power outages.
- Unpleasant odors during operation: Check if the activated carbon filters are correctly installed and not expired. Replace filters if necessary. Ensure the lid is properly sealed.
- Waste not fully processed: Reduce the amount of waste in the bucket. Ensure large items are cut into smaller pieces. Select a longer processing time if using Manual Mode.
- Error message on display: Refer to the specific error code in a more detailed troubleshooting guide (if available) or contact customer support.
- Machine is too loud: While the unit operates quietly (under 40dB), unusual loud noises may indicate an issue. Ensure the inner bucket is properly seated and no foreign objects are obstructing the blades.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | MERIOR |
| Model Number | FC-385o |
| Capacity | 4 Liters |
| Material | Stainless Steel |
| Color | Beige-1 |
| Product Dimensions (L x W x H) | 9.05" x 9.05" x 10.23" (23cm x 23cm x 26cm approx.) |
| Item Weight | 28.7 pounds (13.06 Kilograms) |
| UPC | 797465306722 |
| Manufacturer | Zhongshan Aouball Electric Appliances Co., Ltd. |
10. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact MERIOR customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.





