KOOC Slow Cooker Liners 13 x 21 inches

The large 13 x 21-inch liners are designed to make one of the least appealing parts of slow cooking—scrubbing stuck-on food—easier. Each is disposable, and the pack comes with 20 liners in a resealable bag, so you can take one out when you need it and keep the rest together.

They’re intended for round and oval slow cookers, with a stated fit range that needs a closer look.

How it fits

The product name says these liners fit 3–8-quart slow cookers, while the supplied description lists 3 to 8.5 quarts. That difference matters if your cooker is at the upper end of the range, so check the package details against your slow cooker’s capacity before relying on the fit. The 13 x 21-inch size is also a practical detail to compare with the shape and depth of your insert, a liner that’s too small may not cover the sides as intended.

For a meal like chili or pulled meat, the idea is simple: place a liner in the insert before adding ingredients, then lift it out after cooking instead of tackling as much residue on the pot. Does that make cleanup disappear? No—the liner is single-use, and you’ll still need to handle and discard it, but it can reduce direct contact with sticky food.

Pros

• Twenty single-use liners give you a supply for multiple cooking sessions.
• A resealable bag keeps the unused liners together and makes it easier to take out one at a time.
• The stated design works with both round and oval slow cookers.
• The product is described as BPA-free and made from a durable nylon blend.

The trade-off is extra disposable material with each use. If you prefer reusable kitchen accessories or want to avoid throwing away a liner after every meal, a washable insert or simply cooking directly in the slow cooker may suit your routine better. Worth considering if less scrubbing is worth that added waste to you.

Spec sheet

• Format: Disposable slow cooker liners
• Size: 13 x 21 inches
• Capacity: Listed as 3–8 quarts in the product name and 3–8.5 quarts in the description
• Material: Nylon blend, described as BPA-free
• Count: 20 liners
• Shape compatibility: Round and oval slow cookers
• Heat resistance: The product name says up to 400°F, while the supplied description says up to 375°F

Those capacity and heat ratings don’t match across the supplied product details. Since temperature is a safety-relevant specification, confirm the rating on the packaging before use rather than assuming the higher figure applies. The description also says the liners are intended for high and low temperatures, but doesn’t provide more specific use instructions.

Is it worth it?

This is a convenience purchase, not a cooking upgrade: its main job is to make removing food residue easier after a slow-cooked meal. It’s not for you if you prioritize reusable products, need a precisely confirmed fit near the upper capacity limit, or want one unambiguous heat rating before buying. If you often make sticky, long-cooked dishes and don’t mind disposing of a liner each time, the 20-count pack may fit that routine. The stated size and round-or-oval design give you useful starting points, but the conflicting fit and temperature details are reasons to verify the exact product packaging first.