Bokashi Composting Compatibility Chart (Top 50)
This chart ranks fifty common kitchen and household scraps for their suitability in Bokashi fermentation systems, comparing factors such as breakdown speed, acidity tolerance, odor risk, residue cleanup, liquid production, and post-Bokashi soil integration. Items at the top of the list tend to ferment efficiently with minimal issues, while lower-ranked materials may require extra sawdust, bran, or a second aging stage to fully stabilize before being buried or fed to soil organisms.
What Is Bokashi
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| Material | Suitability | Handlinlg Notes | Best Systems | Warnings |
|---|---|---|---|---|
| Rice scraps | Very High | Ferments cleanly; low pest attraction | Bokashi → Soil → Worm | None |
| Pasta (cooked) | Very High | High moisture; breaks down fast | Bokashi → Soil | None |
| Bread | Very High | Ideal for fermentation; absorbs liquid | Bokashi → Soil | None |
| Fruit scraps | Very High | Sweet; rapid acids; excellent bokashi feed | Bokashi → Soil → Worm | None |
| Vegetable scraps | Very High | Balanced moisture; easy fermentation | Bokashi → Soil → Worm | None |
| Coffee grounds | High | Slight acidity; balances nitrogen | Bokashi → Soil | Worms tolerate small amounts |
| Tea leaves | High | Good carbon balance; breaks down well | Bokashi → Soil → Worm | None |
| Cheese | High | High fat; ferments well; odor potential | Bokashi only | Pest risk if exposed during soil stage |
| Eggshells | Medium | Requires crushing; slow mineral release | Bokashi → Soil → Worm | None |
| Citrus peels | Medium | Slow fermentation; high acidity | Bokashi → Soil | Worms limited tolerance |
| Onion scraps | Medium | Pungent; moderate acidity | Bokashi → Soil | Worm limitation possible |
| Garlic scraps | Medium | Pungent; antimicrobial oils | Bokashi → Soil | Reduce worm exposure |
| Cooked meat | High | Ferments well; high nitrogen | Bokashi only | Do not expose to open compost or worms |
| Fish scraps | High | Ferments well; oily proteins | Bokashi only | Strong odor if mishandled |
| Bones (soft/cooked) | Low | Slow breakdown; brittle after fermentation | Bokashi → Soil | Do not add to worms |
| Bones (raw) | Very Low | Extremely slow; may not finish | Bokashi → Soil | No worms |
| Small fish bones | Medium | Ferments; dissolves partially | Bokashi → Soil | No worms |
| Shrimp shells | High | Breaks down well; mild odor | Bokashi → Soil → Worm | None |
| Crab shells | Medium | Hard chitin; slow softening | Bokashi → Soil | No worms |
| Nut shells | Low | Hard lignin structure | Bokashi → Soil | No worms |
| Coffee filters | High | Carbon-rich paper; breaks down well | Bokashi → Soil → Worm | None |
| Paper towels | High | Absorbs liquid; ideal balancer | Bokashi → Soil → Worm | None |
| Cardboard (shredded) | Medium | Carbon-heavy; adds bulk | Bokashi → Soil → Worm | None |
| Moldy bread | Very High | Already partially digested | Bokashi → Soil → Worm | None |
| Wilted flowers | High | Soft tissues; breaks fast | Bokashi → Soil → Worm | None |
| Spoiled vegetables | Very High | Ideal moisture & sugars | Bokashi → Soil → Worm | None |
| Spoiled fruit | Very High | Sweet; ferments aggressively | Bokashi → Soil → Worm | None |
| Cooked rice | Very High | Excellent fermentation substrate | Bokashi → Soil → Worm | None |
| Tofu | High | Protein-rich; ferments cleanly | Bokashi → Soil | No worms until processed |
| Yogurt | High | Lactic bacteria; assists fermentation | Bokashi → Soil → Worm | None |
| Milk | High | Boosts lactic fermentation | Bokashi → Soil | Pest risk if exposed |
| Butter | Medium | High fat; slower breakdown | Bokashi only | Do not add to worms |
| Cooking oil (small amounts) | Low | Very slow; sticky substrate | Bokashi only | No worms |
| Banana peels | High | High potassium; softens fast | Bokashi → Soil → Worm | None |
| Avocado skins | Medium | Tough exterior; slow | Bokashi → Soil | Worms avoid skins |
| Avocado pits | Very Low | Extremely slow | Bokashi → Soil | No worms |
| Apple cores | High | Moist & sweet | Bokashi → Soil → Worm | None |
| Peach pits | Very Low | Hard endocarp | Bokashi → Soil | No worms |
| Plum pits | Very Low | Slow breakdown | Bokashi → Soil | No worms |
| Cooked beans | High | Protein & moisture | Bokashi → Soil → Worm | None |
| Cooked lentils | High | Ferments rapidly | Bokashi → Soil → Worm | None |
| Leftover soup solids | High | Excellent acid feed | Bokashi → Soil | None |
| Small bread crusts | Very High | Absorbs acids | Bokashi → Soil | None |
| Noodles (cooked) | Very High | Breaks down fast | Bokashi → Soil → Worm | None |
| Seaweed | High | Mineral-rich; breaks easily | Bokashi → Soil → Worm | None |
| Crackers | High | Dry; absorbs moisture | Bokashi → Soil | None |
| Cereal (stale) | High | Sweet substrate | Bokashi → Soil → Worm | None |
| Cake or pastry | High | High sugar; fast fermentation | Bokashi → Soil | Pest risk if exposed |
| Peanut shells | Low | Slow lignin breakdown | Bokashi → Soil | No worms |
| Pumpkin rinds | Medium | Hard rind; slow fermentation | Bokashi → Soil | Worms limited tolerance |
| Melon rinds | Medium | Watery; dilutes acids | Bokashi → Soil → Worm | None |
| Egg whites (cooked) | Medium | Protein; slight sulfur | Bokashi → Soil | Odor if exposed |