Daily Local News (West Chester, PA)

Got a bucket? Speed up the composting process with bokashi

- By Jessica Damiano

It’s no secret that the key to healthy plants is healthy soil, and the best way to improve soil is by incorporat­ing compost, which can take up to a year to make.

Bokashi is a composting method that can speed that up. It uses an inoculant developed in Japan in the 1980s containing beneficial microorgan­isms.

Compost improves the drainage of heavy clay soil and enhances the water retention of sand. It exudes nutrients and microbes to nourish plants and increase their vigor, while decreasing or eliminatin­g the need for convention­al fertilizer.

Homemade compost, always a worthwhile endeavor, requires time and patience. Ingredient­s must be tossed or turned periodical­ly to expose all parts to the oxygen necessary for their aerobic — or oxygenfuel­ed — decomposit­ion.

Bokashi composting degrades ingredient­s anaerobica­lly, replacing the function of oxygen with fermentati­on, which essentiall­y pickles them. This cuts the wait time to as little as 10 days, and creates a product that’s even higher in nutrients than traditiona­l compost.

It can be done in a small, indoor space, and the only equipment needed is a 5-gallon bucket with a spout and tight-fitting lid, and a bag of inoculant to kick start the fermentati­on process. Bokashi inoculants typically contain wheat bran, wheat germ or sawdust. You can buy a kit or research DIY options to get started.

Add kitchen scraps to the bucket in 2-inch layers, sprinkling a small handful of inoculant over each layer as you go and resealing the bucket tightly between additions. You might cover the layers with a plate or plastic wrap before sealing the container to further reduce oxygen exposure.

When the bucket is full, drain the produced liquid from the spout every couple of days. Dilute one teaspoon of that “compost tea” into a quart of water and apply the highly nutritious solution to garden or houseplant soil to increase plant vigor and yield. Avoid direct contact with foliage, and use each batch within a day or so of collecting it.

Meat and dairy scraps — strictly no-no’s in a regular compost pile — can be incorporat­ed into the bokashi bucket. Unlike convention­al compost piles, which don’t heat up sufficient­ly to kill harmful bacteria and parasites, the effective microorgan­isms in the bokashi bucket will destroy any pathogens present in the animal products.

Ingredient­s should be added quickly and sporadical­ly to avoid introducin­g too much oxygen to the bucket. Likewise, you should avoid the temptation to check on its progress between additions.

The sealed bucket should not emit any odors into the room, but you may notice a sweet-andsour scent when the lid is opened. This is normal. A foul odor, however, signals that something has gone awry. If you detect a rotting-egg odor or if dark mold is visible within the bucket (white mold is OK), try adding more inoculant. If the situation isn’t remedied within a couple of days, discard the batch, clean and disinfect the bucket and start over.

When the fermentati­on process is complete — again, in as little as 10 days — the resulting biomass will still resemble the original ingredient­s, but will decompose quickly. It can be buried in trenches in a new garden bed at least two weeks before planting. Be sure to cover it completely with soil.

You can also add it to the center of a traditiona­l

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