Home Composting What Ive Learned So Far

Home Composting – What I’ve Learned So Far

Posted by: Darren in Grow Your Own | Self-Sufficiency
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I’ve been recycling vegetable-based kitchen waste and shredding copious amounts of unwanted paper for the past few years, all in the name of making my own compost. It’s a great way to help prevent adding unnecessary volume to landfill sites, as well as save a few quid on shop-bought compost; all the while improving your soil and helping boost your own GYO crops.

Along the way, I’ve learned a thing or two about the composting process, which I thought I’d share in case it’s useful.

Setting Up Your Composting System

Firstly: it’s all very well if you’ve got a couple of acres to play with and can set aside a big section of your plot for a multi-bin composting system, like Gardeners World’s own Monty Don, or this lucky fella, but if not, then you’ll probably need to rely on black or green plastic, dalek-style compost converters.

Handy Hint #1: Check with your local authority to see if they run a home-composting discount scheme. For instance, if you live in Greater Manchester, go via www.greatermanchester.getcomposting.com and you can get a 330l Blackwall Compost Converter from www.evengreener.com for £18.00, instead of the usual £34.95.

Handy Hint #2: Get two of them. Two converters allows you to fill one for a few months, then leave it to do it’s thing for a few months more while you start filling the second one. Then you can empty and use the first before you start filling that one again, leaving the second to do its thing, and so forth…

Otherwise the constant addition of new compostable material to the top of the converter, coupled with the necessary mixing, turning and churning, means it’s very difficult to get anything useful and usable out of the bottom. Not without having a load of unusable, un-composted material mixed in, which you’ll have to sieve or pick back out again.

Trust me on this, the extra £18 is well worth the saved hassle. And yes, you could get one bin this year and a second next year, but then again, you might as well get the second one now and save on the delivery costs. You could always use the second one to make up a batch of leaf mold while it’s not being used for waste-composting.

What Does and, More Importantly, Doesn’t Compost Well

Depending on the advice you read (here’s some from our local authority) it seems that pretty much anything organic and vegetable-based can and should go into a composting system. That’s the advice I took when I first started filling bin #1. So emptying bin #1 has been something of a revelation; turns out there’s all sorts of theoretically-compostable stuff that doesn’t actually compost very well (hence the sieve):

The main culprits seem to be:

  1. “Compostable” plastic bags – All that supermarket plastic packaging – usually wrapped around organic spuds and the like – that claims to be compostable? Only half-true. The stuff breaks down eventually, but what you usually end up with is clumps of stringy, half-shredded plastic that’s not much good for anything.
  2. Stones & skins – Fruit stones and pits (apricots, nectarines, avocados etc) seem to take a really long time to even think about breaking down, if at all. Likewise tougher skins / shells, such as avocado and chestnut. Oh, and don’t put pistachio shells in there, whatever you do. You’ll be picking them back out forever.
  3. Bark, twigs, branches – Hard woody stems are often recommended as being an excellent source of ‘brown’ material, but again, they can take a long time to break down, so they might be better off on a separate heap, if you have room for one. And especially, don’t put dead, dry brambles in there; you’ll regret it first time you grab a handful of compost to spread on the veg patch and end up with a fistful of thorns.
  4. Teabags – Bit of a surprise, this one. You’d expect tea-bags – tea leaves, wrapped in paper, right? – to be ideal for the composter. But it turns out that some teabag manufacturers mix artificial fibres into the weave of the bag to strengthen them. Net composting result: mountains of lattice-like mess that won’t break down and has to be sieved or picked out. Empirical evidence based on what I’ve been picking out of bin #1 recently suggests that round teabags are definitely the worst offenders; squares and pyramids seem okay.
  5. Eggshells – Again, the advice sheets often say that eggshells are a good source of calcium for the composter, but they do tend to hang around. They can be crushed up fairly small, so aren’t a massive problem, but if you’re averse to seeing egg-shell splinters scattered across your veg patch then don’t include them in the mix.

Apart from the above, the rest of the general advice does seem pretty sound; any and all veg peelings, soft fruit, shredded paper, cardboard (as long as it’s not gloss-printed and there’s no packing tape attached) and garden cuttings (as long as no perennial weeds are involved) work extremely well.

Handy Hint #3 – I don’t have a photo, but if you’re lucky you might get an ant colony building a mound inside your compost converter. Ants are good, or they seem to be. The little guys really work hard to break everything down and mix it around – they might even help to control fruit flies by eating the insect larvae, but I’m not 100% sure on that point – so if I do find an ant-hill I’ll usually leave it to do its thing for a while.

Eventually you’ll need to break it up and disperse the ants – ideally a couple of days before you want to use the compost to give them time to clear out – to avoid spreading them everywhere, but I don’t think there’s any harm in letting them dig around in there for a while.

The End Result is Well Worth the Effort

If you get the balance right – between green material and brown material, mixing and moistening – then at the end of the process you should end up with a bin that’s about two-thirds full of rich, crumbly, odourless, nutrient-bearing compost that’s perfect for improving your soil:

See what I mean about the egg-shells and the scraps of “compostable’” plastic in the above pic? Melon seeds everywhere, too. But generally, not too shabby at all.

Please do feel free to leave a comment if you have any composting tips, or corrections to the above.

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Darren Turpin

Gardener at Backyard Kitchen Garden
A passionate gardener with a speciality in growing fruit and vegetables on a budget!

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