Odor-reducing design
Sealed processing and carbon filtration help reduce everyday food-waste odors during use.

No FPS needed. MB4 dries and grinds kitchen scraps into low-odor grounds that are easier to handle, empty, and dispose of than wet trash.
Add FPS. MB4 supports microbial composting to help food scraps continue breaking down as part of a garden-use composting routine over time.
MB4 features two optimized food recycling modes plus a dedicated self-cleaning cycle, making operation easier, more flexible, and more intentional.
| Dimensions |
12.8"D x 8.9"W x 13.31"H (4L)
Small enough to be used anywhere in the kitchen.
|
| Weight | 16.53 lbs |
| Volume |
4L / 1.06 gal
Just the right size for daily food scraps.
|
| Capacity | Up to 2.2 lbs per standard cycle |
| Typical cycle time | About 4 hours, depending on load moisture |
| Voltage | 120V / 60Hz |
| Noise |
38dB
As quiet as a library.
|
| Power Cord | 3.94 ft / 1.2m |
Sealed processing and carbon filtration help reduce everyday food-waste odors during use.
Mb4 is quick and whisper quiet, allowing you to save time in your day and run it overnight.
Drying and grinding can reduce the volume of food scraps by up to 90% under specific load conditions, making dry grounds easier to manage. Results vary with load composition and moisture.
Drying scraps sooner helps reduce the wet, exposed food waste that can attract fruit flies and other pests.
REAL KITCHEN PROOF
End the Mess. Your kitchen's most essential machine starts working when dinner is over.
Compact, quiet, and clean-lined — MB4 fits into your kitchen routine without taking over your counter.
Quiet by Design
Built to run in the background without taking over the room.
Quiet by Design
Scraps to Grounds
Daily scraps go in, dry Moreborn Grounds come out.
Scraps to Grounds
Clean, Modern Profile
Soft edges and a clean silhouette help MB4 blend into modern kitchens.
Clean, Modern ProfileGive food scraps a cleaner second life — from daily kitchen mess to Moreborn Grounds.
Use Moreborn Grounds as part of a composting or garden-use routine after further breakdown or curing where appropriate.
Reduce the wet scraps sitting in your trash and make everyday food waste easier to collect, store, or process.
Less smell, fewer leaking bags, and a cleaner reset after cooking — without building an outdoor compost pile.
Keep MB4 close to your food-scrap routine on a stable, dry surface with room for ventilation.
MB4 is designed for everyday kitchen placement, so scraps can go in right where they happen — after prep, meals, or cleanup.
Prefer to keep food-scrap processing outside the kitchen? Place MB4 in a covered, dry, well-ventilated area and follow the operating guidance in the manual.
Start with MB4 at a lower entry price than many premium food recyclers, then keep your routine simple with replaceable filters and optional FPS for Composting Mode. Carbon filters help control odor during everyday use. FPS is optional and used when you choose Composting Mode to support microbial breakdown over time.
MOREBORN GROUNDS
Moreborn Grounds are the dry, soil-like output created after MB4 processes your food scraps. They are not finished compost.
They are no longer wet, dripping kitchen waste. They are lighter, drier, and easier to contain — whether you add them to a further composting or curing routine, use approved organics collection, or keep trash cleaner between pickups.
Think of them as a cleaner, drier way to give food scraps a second life.
Moreborn Grounds
Add dry Moreborn Grounds to a further composting or curing routine before garden use, following local guidance.
Use an approved organics collection option where available.
Keep dry Grounds contained until trash day for easier food-waste handling.
REAL KITCHENS. REAL SCRAPS. REAL RESULTS.
MB4 dries, grinds, and transforms everyday kitchen scraps into dry, soil-like Moreborn Grounds. It helps reduce wet food waste, kitchen odor, fruit flies, leaking trash bags, and messy daily cleanup.
Moreborn Grounds are the dry, soil-like output created after MB4 processes your food scraps. They are lighter, drier, and easier to use or handle than wet kitchen waste — making them easier to add into a composting routine, place in approved organics collection, or keep contained until pickup.
MB4 is a countertop food recycler and composting solution for everyday kitchens. It dries and grinds food scraps into Moreborn Grounds for cleaner handling, less odor, and easier food-waste routines.
For users who want to go further, MB4 also supports Composting Mode with FPS to help support microbial breakdown over time.
No. FPS is not needed if you use MB4 for Dry & Dispose Mode.
FPS is used when you choose Composting Mode and want to support microbial breakdown for a garden-use composting routine over time.
MB4 does not create finished compost in one short cycle. It creates dry Moreborn Grounds. For garden use, allow further composting or curing as appropriate and follow local guidance.
A typical Dry & Dispose cycle takes about 4 hours, depending on the amount and moisture level of the food scraps.
MB4 is designed for everyday kitchen scraps such as fruit and vegetable peels, leftovers, coffee grounds, eggshells, grains, bread, and similar food waste. Avoid excess liquids, cooking oil, hard bones, shells, plastic, metal, glass, and non-food items.