One of biggest frustrations people have with their Bokashi bin, it seems, is that now and then it smells.
Not just a bit, but really, really off. Not good for goodwill in the family or recruiting friends and neighbors to the cause. Mostly, people try to solve the problem by tossing in more bran. Gradually getting more disillusioned as it fails to make a big difference. Sadly I think a lot of bins have ended up in a corner of the garage because of this. A great idea that just didn’t quite make it.
The reason a Bokashi bin starts to smell is, nearly always, that it’s simply too wet in there. No amount of bran will help, you simply ha
ve to get rid of the excess moisture. The easiest way to do that is to simply put a newspaper inside the bin for a few days, it will absorb the humidity and most of the smell will disappear.
How do you know when it’s too wet in your bin? You’d think the drainage tap would take care of all liquid issues but for whatever reason not all liquid goes down to the bottom. Some goes up and hangs in the air pocket over the food waste. Some forms condensation droplets on the inside of the lid. And this is the point at which your bin starts to stink.
Next time you open your bin, check the underside of the lid. Condensation? Then it’s too wet and it would be worth tossing in a newspaper. If it’s not a big problem it could be enough just to add a toilet roll or two, or an empty egg carton, something along those lines that will take up the moisture.
Usually the newspaper will be
quite soggy after a couple of days, then it’s done its work. You can leave it in there if you like, but if you think it’s just taking up a lot of valuable space you could remove it — just add another paper if and when needed. When you’ve got a newspaper in there it’s also a good chance to push down the contents of your bin, at least your hands won’t get icky in the process. And the more compact it is in your bin the better the Bokashi process will work. I suspect this also helps squeeze down moisture towards the drainage tap too, and that’s always a good thing.
So then you’re standing there with a soggy newspaper in your hand, wondering what to do next. Don’t just toss it! By this time the paper is soaked with nutrients and good microbes, just the thing to use in your garden. If you’re into mulching, these newspapers are g
reat to lay out under bushes (especially berry bushes if you have them), in garden beds or veggie patches. Admittedly, they look a bit silly and will blow away as soon as they dry out, but you can always cover them with some bark, leaves or soil so they look a bit better. Have a peek under the paper after a few days, most likely it will be a full-scale worm party right there under your nose.
Another option is to toss the nutrient/microbe newspaper in the garden compost and cover so it doesn’t blow away. The carbon in the paper is nea
rly always needed in a standard outdoor compost to compensate all the leaves and other green stuff. And the microbes and nutrients just help it all along.
Or you can tear it into shreds and simply dig it down into your soil. The worms will love it, and after all it’s the worms that feed the plants so why not?
Just realized I’d posted a picture here before starting to write and completely lost my thread. The little white gadget is something I brought home from Ikea the other day and plan to have on the kitchen bench (or maybe in the cupboard under the sink) to store my
food scraps in during the day. That means they can run off for a few hours before landing in the bin. Especially useful if you’re fighting with a bin that is always too wet, or a family that is hard to train. Kids can always find their way to the little white box and put in their apple core. Once or twice a day, probably when you’re cleaning up after a meal, it’s just to take the drained-off bits in the white box and add them to the Bokashi bin.
Here in Sweden people drink enormous amounts of coffee for some reason, and it’s nearly always brewed at home (or in the office) in filter brewers. That means that after each brew you have a dripping wet filter of coffee to deal with. It’s really worth letting it run off first, coffee dries up quite quickly (and is a brilliant nutrient!), and it’s much better to add it your Bokashi bin after it’
s stopped dripping. Especially if you brew a lot of coffee at home! So a neat and tidy drainage solution is not so silly. Previously I’ve used a terra-cotta plant pot with an extra drainage tray as a lid. Works well, and the lid is not so silly if you have banana flies in the summer.
And, if you’ve got a Bokashi bin in the corner of your garage somewhere, would some of this be the reason you lost interest? May be time to have another go — your garden will thank you for it!
Just another thought: if you have a lot of loose tea leaves to deal with or make coffee in a french press you’re probably tearing your hair out with all the wet mess. At home we have one of these nylon coffee filters lying around in the sink, it gets in the way a bit, but as there’s always some tea or coffee slops to deal with we put up with it. They dry out really fast then you can dump them in the Bokashi bin. Also works well if you end up with a lot of wet, slimy rice in the sink. Just scoop it up and drain if off in the filter for a while.