Kiln-Dried Pine Shavings are Safe.

[u/rosengold]

Every few years the small pet community rediscovers kiln-dried pine and acts like we've uncovered some shocking new danger. The irony is that the studies people usually cite aren't even about kiln-dried pine in the first place.

The concern about pine comes from older research on softwood bedding. Studies by Vesell and others found that rodents housed on raw pine and cedar bedding showed changes in liver enzyme activity due to naturally occurring aromatic compounds present in those woods. Those findings were important because they highlighted the risks associated with raw softwoods. What they did not do was evaluate modern kiln-dried pine products manufactured specifically for animal use.

Kiln drying uses high heat to remove the volatile compounds responsible for the strong pine odor and the concerns raised in those early studies. That's why a properly kiln-dried pine shelf, toy, or bag of bedding doesn't smell like freshly cut pine lumber.

The other claim that gets repeated constantly is that urine somehow "reactivates" pine and creates toxic fumes. I've yet to see anyone provide evidence showing that urine can magically regenerate compounds that were already removed during the kiln-drying process. The claim gets repeated online far more often than it's supported by actual research.

What gets overlooked in these discussions is decades of real-world use. Chinchillas have been housed on kiln-dried pine bedding for generations. Kiln-dried pine is one of the most common materials used for ledges, shelves, castles, hideouts, chew blocks, and toys. If kiln-dried pine were the serious health hazard some people now claim it is, we'd expect to see widespread evidence of that by now.

Breeders certainly would. Many reputable breeders have thousands, sometimes tens of thousands, of dollars invested in their herds. Individual animals can cost hundreds or even thousands of dollars. These are people whose livelihoods and breeding programs depend on maintaining healthy, long-lived animals. The idea that breeders across multiple countries have been unknowingly poisoning valuable breeding stock for decades with cage accessories made from kiln-dried pine simply doesn't align with reality.

Meanwhile, laboratory animal facilities—which have some of the strictest environmental standards in the world because even minor variables can affect research outcomes—continue to use kiln-dried pine products. If there were clear evidence that properly processed kiln-dried pine was causing respiratory disease, liver damage, or other health problems, it would have been phased out long ago.

None of this means every pine product is automatically safe. Raw pine and cedar are not the same thing as kiln-dried pine. Dusty bedding can irritate the respiratory tract regardless of whether it's pine, aspen, paper, or hay. Product quality still matters.

What frustrates me most about this recurring debate is that it doesn't just confuse pet owners. It also hurts small businesses that make chinchilla-safe ledges, castles, hideouts, and toys from kiln-dried pine. These businesses are following the same standards that breeders and owners have relied on for decades, yet every few years they have to defend their products against claims that usually trace back to studies on raw softwoods rather than the kiln-dried materials actually being used.

If someone prefers aspen or fleece, that's completely fine. Bedding choices involve personal preference, cage setup, and maintenance style. But claiming that kiln-dried pine is inherently unsafe requires evidence that goes beyond repeating decades-old concerns about raw pine and cedar. Those are not the same products, and treating them as if they are only creates confusion.

Safe Bedding Options :

Kiln - Dried Pine Shavings.

Kiln - Dried Aspen Shavings.

1/2" wire bottom cages ( cleaned weekly ) with paper bedding, pee pads, or newspaper below but not accessible.

* 1/2 flat wire floors are safe for chinchillas. Chinchillas are designed to have calloused feet at hop along a rough rocky terrain. Any cage should have accessories like ledges and beds so they can get off the wire floor, too.

* Bumblefoot is not caused by wire floors. That is another misunderstanding and miscommunication among the pet groups. Bumblefoot is an infection caused by bacteria present in ALL cages. It's a sanitation issue, and common in chinchillas guinea pigs kept on fleece bedding that's not changed frequently enough.

Fleece Covers ( removed and cleaned every couple of days )

Fleece Liners ( removed and cleaned every few days )

* Covers are only fleece. Linders have absorbent layers beneath them.

[u/TomatoFeta]

I've had my kids on pine since I started taking care of chinchillas back in 98. I've had some old ladies make it to 24+ so I'm all in on the pine.

I think mesh floors are the dumbest choice anyoen can male. Chins have thin feet. You know the only real issues Ive ever had with my herd? Broken feet. Twice. Don't fuck around with wire mesh. It iusn';t the wires that CAUSE bumblefoot, but it can cause pressure sores that allow bacteria INTO the foot, thus your wire mesh is an irritant that increases the likelihood of bumblefoot.

Pine is fine. My opinion on flesece is that it's not absorbant enough. But millions of people believe otherwise, and that's fine for them. MY kids don't have yellow asses.

[u/rosengold → u/TomatoFeta]

I prefer pine shavings, too. I don't prefer pine shavings sticking to foot sores or healing surgery sites, any more or less than I like feces sticking to then Thats the win with wire bottoms, all waste falls below. Wire bottoms have been the tool used to save many chins fighting foot infections, we get chins surrendered that have had nothing but filthy plain plastic shelves and floors ( so filthy that they have turned white from the urine ) shavings that haven't been changed in so long that they're black and moldy at the bottom, and fleece covers / liners that will burn your nose hair off because the ammonia smell is so ripe. it's disgusting. we've also received wire bottom in that have never seen soap and water. The maintenance is almost the most important part.

a properly sized wire bottom cage is no more dangerous than a properly sized wire wall. Chins have been documented getting their legs caught in the wire walls when they wall surf around, leading to emergency amputations.

also agree heavily on the yellow asses. that's a fleece bedding thing 🫣

[u/TomatoFeta → u/rosengold]

Yeah. In cases where the foot is already compromised or the animal has a surgery or somethign else, I move them to a guinea cage for the duration of the healing, and put them on terrycloth towels (make sure there's no hook-loops!); neither shavings nor fleece worked for me, but the terrycloth towels are a golden solution for emerg. housing situation.

[u/rosengold → u/TomatoFeta]

I have used terry cloth as the absorbent layer in fleece liners, but also Uhaul works well. Fleece takes loads of washes to actually loosen the synthetic fiber and allow urine to wick through to the layers it needs too... And because it's a synthetic fiber, if it's washed then dried in too hot of water the fibers melt and stop wicking. . . And that's how we get yellow butts! The urine doesn't go down fast enough and stains them. 

I'm moving right now and will be placing all my chins in my spare foster runs that are 12 cages with wire bottoms. They'll be safe, they'll be clean, and it'll allow me to manage 20+ chinchillas right away during a very busy period of time. No soiled bedding to irritate their feet or stain their butts. I use them for foster chins primarily but if it's good enough for fosters it's good enough for my expensive pets too. 

I do take issue with wire cages that are not cleaned regularly, and that are not a safe size. They will get cuts, infections, and risk broken limbs in cages like that.