One of the principles behind Culm's design is that the post should outlast the need for it — or at the very least, your cat's scratching years. The bamboo is structural, not decorative, and with a little basic care it should stay stable, clean, and appealing for a very long time.
The sleeve is a different story. It's designed to be worn through — that's the point. Your cat's claws do their job on the jute, the fibre gradually loosens and compresses, and at some point the surface no longer provides the resistance and texture your cat is looking for. When that happens, you replace the sleeve. Not the whole product.
Here's how to get the most out of both.
How to tell when the sleeve needs replacing
The honest answer is: your cat will often tell you before you notice. If they start scratching elsewhere — on your sofa, your carpet, your kitchen units — that's usually a sign that the current surface no longer satisfies. But there are physical signs to look for too.
Natural compression of the jute weave. The surface is still functional — cats often prefer a slightly worn surface to a brand new one.
The weave is beginning to loosen at the surface. Normal behaviour, but monitor. If loose fibres are long, remove them manually.
Areas of the sleeve have worn through to the bamboo beneath, or the sleeve has begun to slide or bunch on the post. Time for a new sleeve.
A typical sleeve on a single-cat household should last anywhere from four to eight months, depending on how enthusiastically your cat uses it. Households with multiple cats, or cats that are particularly vigorous scratchers, may find they're replacing more frequently. That's fine — the economics still compare favourably to buying a new product each time.
As jute wears, short fibres will naturally shed. This is normal and not a safety concern — jute is a food-grade natural fibre and a small amount of incidental ingestion is not harmful to cats. If you notice longer loose strands developing, you can trim these with scissors. Remove any strands that are long enough to wrap around a cat's mouth or paw.
Cleaning and maintaining the bamboo post
The bamboo post will accumulate scent marking over time — which is actually desirable, since it draws your cat back to the scratcher. But it may also pick up dust, pet hair, and the occasional food smear if it's positioned near feeding areas. Here's how to clean it without damaging the surface.
Remove the sleeve first
Slide the jute sleeve off the post before cleaning. This gives you full access to the bamboo surface and prevents moisture getting trapped between sleeve and post.
Wipe with a lightly damp cloth
A soft cloth dampened with plain water is sufficient for most cleaning. Avoid soaking the bamboo — prolonged moisture can cause swelling at the grain. Wipe along the grain direction where possible.
For odour or deeper cleaning, use diluted white vinegar
A 1:3 white vinegar to water solution works well for odour. Apply sparingly, wipe clean immediately, and allow to dry fully in a well-ventilated area before replacing the sleeve.
Dry thoroughly before reassembly
Bamboo should be fully dry before the sleeve is replaced. A few hours at room temperature is usually sufficient. Avoid direct sunlight or heat sources, which can cause surface cracking.
Occasional light oiling (optional)
If the bamboo surface starts to look or feel dry after extended use, a light application of food-grade mineral oil or cold-pressed flaxseed oil can restore its appearance. Apply a small amount with a cloth, leave for 20 minutes, then buff off the excess.
"A well-maintained bamboo post can last years — sometimes a decade or more. It's not a consumable. Treat it like good furniture."
What to do with a worn sleeve
This is something we take seriously, because a replaceable sleeve is only genuinely sustainable if the worn ones don't just go straight to landfill. Here are the options, in order of preference.
Compost it
Natural jute, uncoated and undyed, is compostable. If you have a home compost heap or access to a local compost facility, a worn Culm sleeve can go in. It will break down within a few months in active composting conditions. Untreated heavy jute is the only kind we use in Culm sleeves — no dyes, no synthetic coatings — so you can compost with confidence.
General waste (where composting isn't possible)
If composting isn't available to you, general waste is the fallback. We won't pretend that's ideal — but we will say honestly that a small piece of natural jute fibre going to landfill is considerably less harmful than an entire MDF scratcher, synthetic carpet and all. The replaceable model still represents a meaningful reduction in waste over time, even in this scenario.
A freepost returns programme — our long-term ambition
We want to be transparent here. A freepost sleeve returns programme — where you send worn sleeves back to us for composting or processing at scale — is something we genuinely aspire to build. It's the right answer for a product like this, and it's the kind of closed-loop system that would make Culm a true beacon of circularity in this industry.
But we're not going to promise it before we can deliver it. Right now, Culm is a young business. Our first priority has to be building something people love, growing a customer base, and achieving the scale and capital that makes infrastructure like a returns programme operationally viable. Launching a freepost scheme prematurely — before we have the logistics, the processing partners, and the financial foundation to run it properly — would be worse than not launching it at all.
What we can commit to is this: building toward that model is a core part of why Culm exists. As the business grows, so will our ability to invest in it. We'll be transparent with our community about where we are on that journey, and when we're ready to launch a returns programme, waitlist members will hear about it first.
We want Culm to be the most circular brand in the cat furniture industry. That means a closed-loop sleeve return system, compostable packaging, and full end-of-life transparency. We're not there yet — but it's where we're heading, and we'll grow toward it honestly rather than claim it before it's real.
Placement tips that extend sleeve life
Where you position your Culm in the home can meaningfully affect how quickly the sleeve wears — and whether your cat uses it consistently. A few things worth knowing.
Place it near where your cat sleeps or rests. Cats most often scratch immediately after waking, as part of a stretch reflex. A scratcher positioned near a favourite sleeping spot will see far more use than one in an out-of-the-way corner.
Stability matters. If the base wobbles or the post moves when scratched, many cats will abandon it. Ensure the base is sitting on a flat, non-slip surface. Culm's base is weighted for this reason, but a non-slip mat beneath it on hard floors can help.
Avoid damp or humid areas. Bamboo is moisture-resistant, but not moisture-proof. Avoid placing Culm in a bathroom, conservatory, or any area with high humidity or temperature swings. The jute sleeve will degrade faster in damp conditions.
Don't over-position. One well-placed scratcher is generally more effective than several poorly placed ones. Cats are territorial creatures and will often prefer one scratching site — so put it where they already show scratching behaviour, not where you wish they would scratch.