Best Guinea Pig Hay in 2026: Oxbow vs Kaytee vs Small Pet Select
We compare the best guinea pig hay from Small Pet Select, Oxbow and Kaytee by cut, sorting process, ingredient purity and packaging to help you choose confidently.
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Prices and availability are accurate as of the time of publication and are subject to change.
Best guinea pig hay in 2026: Oxbow vs Kaytee vs Small Pet Select
Small Pet Select's 2nd Cutting Timothy Hay is the best guinea pig hay in this comparison for most households, thanks to its leafy second-cut texture, hand-packed non-compressed box and a 12-pound size that keeps multiple guinea pigs fed for weeks. Oxbow's Western Timothy Hay suits anyone who wants a stated guaranteed nutrient analysis alongside a hand-sorted, hand-packed process, and Kaytee's Timothy Hay is the easiest smaller bag to start with. Hay is not a side note next to pellets and vegetables. It makes up the bulk of a guinea pig's daily diet, so cut, sorting, ingredient purity and packaging decide whether a bag gets eaten down to the last stem or picked over and wasted.
Guinea pigs need an essentially unlimited supply of grass hay at all times, since digestion and continuously growing teeth both depend on near-constant chewing. That makes the differences between bags matter every day: how the hay smells and looks on arrival, how completely a guinea pig works through it rather than wasting the rest, and how easy the packaging is to reseal between refills.
This comparison is built from each product's stated cut, sorting process, ingredient list and packaging rather than a hands-on trial, since individual bags can vary even within the same brand. None of these hays replace fresh vegetables, a measured pellet ration or clean water, and a guinea pig that stops eating hay needs veterinary attention rather than a hay swap. Before choosing a size, think about how many guinea pigs you feed and whether you have dry, ventilated storage for it.
| Product | Best for | Price |
|---|---|---|
| Small Pet Select 2nd Cutting Timothy Hay, 12 lb | A multi-guinea-pig household that wants a leafy, non-compressed 12-pound box | View |
| Oxbow Western Timothy Hay, 90 oz | An owner who wants a stated guaranteed nutrient analysis and hand-sorted hay | View |
| Kaytee Timothy Hay, 48 oz | A smaller starter bag made specifically for guinea pigs and other small herbivores | View |
What to look for in the best guinea pig hay
Cut is the first thing to check. Second-cut timothy, like Small Pet Select's hay here, has a softer texture and a fuller balance of leaf, stem and seed head than a coarser first cut, so it often disappears from the hay rack more completely instead of being left as rejected stalks. How a bag is handled after harvest matters too. Hand-sorting and hand-packing, the process Oxbow describes, means a person checks the hay before it is packed, while hand-selecting, the process Kaytee describes, focuses on picking long fiber strands. Ingredient purity is the third check: look for hay grown without pesticides and packed without fillers, additives or artificial preservatives.
Three guinea pig hay options compared
Small Pet Select 2nd Cutting Timothy Hay, 12 lb
Small Pet Select's 2nd Cutting Timothy Hay earns the overall pick because it combines a softer, leafier cut with careful packaging in a single 12-pound box. The listing describes 100 percent US-grown second-cut timothy with a balance of leaf, stem and seed heads, the middle-ground cut many owners reach for as a daily staple rather than a coarser first cut. The hay is hand-packed into a corrugated box left non-compressed, so the stems arrive loose and fluffy instead of crushed flat, which helps preserve texture and reduce broken, dusty material. The box also contains no fillers, additives or preservatives, just the hay itself. Choose this option when feeding more than one guinea pig, or when you want a size that lasts weeks without a much larger bulk box. The tradeoff is that 12 pounds is a sizeable amount for a single guinea pig to work through, so a one-guinea-pig household may prefer starting smaller.
Pros
- Second-cut texture with a balanced mix of leaf, stem and seed heads
- Hand-packed into a non-compressed box that keeps stems loose rather than crushed
- No fillers, additives or preservatives in the box
Cons
- 12-pound size is more hay than a single guinea pig works through quickly
- Corrugated box needs a dry storage spot once opened, unlike a resealable bag
Oxbow Western Timothy Hay, 90 oz
Oxbow's Western Timothy Hay stands out for stating a full guaranteed nutrient analysis alongside a hand-sorted, hand-packed process. The listing describes all-natural Western timothy harvested from a family farm, with a minimum of 7 percent protein, a minimum of 1.5 percent fat, a maximum of 32 percent crude fiber and a maximum of 15 percent moisture. Those numbers give a clearer picture of what is going into the bag than a listing with no nutrient information at all. The hand-sorted step means the hay is checked by hand before it is hand-packed, rather than moving from harvest to bag through machine processing alone. At 90 ounces, a little over five and a half pounds, it sits between Kaytee's smaller bag and Small Pet Select's larger box. Choose it when a stated nutrient breakdown matters as much as the cut itself. The tradeoff is that the listing does not specify a cut, so texture can vary more than a bag that states second cut.
Pros
- States a full guaranteed nutrient analysis for protein, fat, fiber and moisture
- Hand-sorted and hand-packed, both done by hand rather than machine only
- All-natural Western timothy harvested from a family farm
Cons
- Listing does not specify a cut, so texture can vary between bags
- 90-ounce size is not the largest option for several guinea pigs
Kaytee Timothy Hay, 48 oz
Kaytee's Timothy Hay is the smallest bag in this comparison at 48 ounces, three pounds, a practical size to try before committing to a larger box. The listing describes hay naturally grown without pesticides and hand-selected for long fiber strands, with no artificial preservatives added during packaging. It is also described as made specifically for guinea pigs and other small herbivores, rather than as a general-purpose hay, and it is naturally high in fiber, the nutrient guinea pigs need most. Choose this bag to test whether a guinea pig eats it readily, or as a manageable size for a single pet that does not need a large box taking up storage space. The tradeoff is straightforward: at 48 ounces, this bag runs out faster than either Small Pet Select's box or Oxbow's bag, so it works better as a starter size or supplement than as a sole long-term supply for more than one guinea pig.
Pros
- Naturally grown without pesticides and hand-selected for long fiber strands
- No artificial preservatives added during packaging
- Made specifically for guinea pigs and other small herbivores
Cons
- Smallest size of the three at 48 ounces, so it runs out faster
- No stated cut or guaranteed nutrient analysis on the listing
Which hay fits your guinea pig
Choose Small Pet Select when you feed more than one guinea pig and want a leafy second-cut hay packed loosely into a box that lasts for weeks. Choose Oxbow when a stated guaranteed nutrient analysis matters as much as texture. Choose Kaytee when you want a smaller bag to start with, whether as a first bag for a new guinea pig or a manageable size for a single pet. Whichever bag arrives, check that it smells grassy and sweet, introduce it gradually alongside the current supply, and store the opened portion dry and away from strong odors.
FAQ
How much hay does a guinea pig need every day?
A guinea pig needs an essentially unlimited supply of grass hay rather than a small daily handful, since hay supports both digestion and the constant wear of teeth that never stop growing. Refill the rack before it runs empty, and expect a healthy guinea pig to work through a noticeable amount every day.
What does second-cut timothy hay mean?
Timothy grass is harvested more than once a season, and each harvest is called a cut. Second cut, like Small Pet Select's hay here, tends to be softer and leafier with a fuller balance of leaf, stem and seed head than a coarser first cut, which is why many owners use it as a daily staple.
How should guinea pig hay be stored after opening?
Keep opened hay in a dry, ventilated spot away from sunlight, moisture and strong-smelling items, since hay absorbs odors and can grow damp if left exposed. A non-compressed box, like Small Pet Select's, already keeps stems loose rather than crushed, so storing it upright between refills keeps it that way.
Availability can change after publication, so confirm current listing details before buying.