A slow cooker liner is a disposable bag that sits inside the pot so the food touches the bag and not the crock. When the meal is done, you lift the bag out and throw it away. The main choices are bag size, how many come in a box and the heat limit the maker lists.
The six liners below run from a small bag for 1 to 3 quart cookers to an oversized bag for 6 to 10 quart pots. Sizes, pack counts and heat limits come from each product’s listing page. We have not used these liners ourselves. Material and temperature claims are the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Bag size | It must cover the pot walls of your cooker |
| Pot fit | Round and oval cookers need different bag lengths |
| Pack count | More bags per box lasts longer |
| Heat limit | Makers list 375 to 400 F; check your recipe |
Specs at a Glance
| Liner | Size and count | Fits | Notes |
|---|---|---|---|
| Reynolds regular | 13 x 21 in; 20 bags | 3 to 8 qt round and oval | Nylon blend; maker lists up to 400 F |
| Syntus | 13 x 21 in; 30 bags | 3 to 8 qt | Each liner stacked individually; up to 400 F |
| OLESBUR | 13 x 21 in; 30 bags | 3 to 8 qt oval | Folded and sealed in a resealable bag; up to 400 F |
| SMARTAKE | 13 x 21 in; 30 bags | 3 to 8 qt round or oval | Maker lists up to 390 F; add water to the pot first |
| Oversized 50-count | 14 x 22 in; 50 bags | 6 to 10 qt | Up to 400 F; two liners can hold two dishes |
| Reynolds small | 10.5 x 17.5 in; 5 bags | 1 to 3 qt round | Nylon blend; low, medium and high settings |
The 6 Best Slow Cooker Liners
1. Reynolds Kitchens Slow Cooker Liners, Regular Size, 20ct
Twenty nylon-blend bags, each 13 by 21 inches, made for 3 to 8 quart round and oval slow cookers. The maker lists BPA-free material and a limit of 400 F.
Suits: a standard family cooker. Strengths: a known brand and a wide pot range. Weaknesses: only 20 bags per box. Skip it if you cook in a very large pot.
View Reynolds Kitchens Slow Cooker Liners, Regular Size, Fits 3-8 Quarts, 20ct on Amazon
2. Syntus 30 Slow Cooker Liners, Large Size 13×21
Thirty nylon-blend bags in 13 by 21 inches for 3 to 8 quart pots. The maker says each liner is stacked individually so you pull one out at a time, and lists a heat limit of 400 F.
Suits: frequent slow cooking. Strengths: 30 bags and single-pull stacking. Weaknesses: the listing text is loosely worded. Skip it if you want a larger bag.
View Syntus 30 Slow Cooker Liners, Large Size 13″x 21″ Fit 3QT to 8QT Pots on Amazon
3. OLESBUR 30 Count Slow Cooker Liners, 13×21
Thirty oval-size liners, 13 by 21 inches, for 3 to 8 quart cookers. They come individually folded and sealed in a protective bag that you can reseal, and the maker lists food-grade nylon blend up to 400 F.
Suits: a tidy box for the cupboard. Strengths: a resealable outer bag. Weaknesses: an unfamiliar brand. Skip it if you want a name-brand liner.
4. SMARTAKE Slow Cooker Liners, Large Size, 30 pcs
Thirty 13 by 21 inch nylon bags for 3 to 8 quart round or oval cookers. The maker lists a limit of 390 F, mentions microwave use, and asks you to add water to the pot before using a bag and to avoid piercing it with sharp objects.
Suits: a basic large-size pack. Strengths: 30 bags and clear use notes. Weaknesses: the capacity field shows 3 quarts, which conflicts with the description. Skip it if you want the highest heat limit.
View SMARTAKE Slow Cooker Liners, Large Size 13″x 21″ Disposable Cooking Bags on Amazon
5. Oversized Slow Cooker Liners, 50 Bags, 14×22
Fifty plastic bags in 14 by 22 inches, sized for 6 to 10 quart slow cookers. The maker lists BPA-free material up to 400 F and says two liners in one pot can hold two dishes at once.
Suits: a big oval cooker. Strengths: the largest bag and the highest count here. Weaknesses: the brand name is hard to recognize. Skip it if your cooker is under 6 quarts.
6. Reynolds Kitchens Slow Cooker Liners, Small Size, 5ct
Five nylon-blend bags, each 10.5 by 17.5 inches, made for 1 to 3 quart round slow cookers, with a BPA-free construction the maker says suits low, medium and high settings.
Suits: a small dip or party cooker. Strengths: the right size for mini pots. Weaknesses: only five bags. Skip it if you own a full-size cooker.
View Reynolds Kitchens Slow Cooker Liners, Small Size, Fits 1-3 Quarts, 5ct on Amazon
Care and Setup
- Open the bag fully and press it against the pot walls before adding food.
- Keep sharp bones and utensils from poking the bag.
- Follow the heat limit on the box.
- Let the pot cool a little before lifting the bag out.
Mistakes to Avoid
- Buying a size that does not match your pot.
- Letting the bag touch the lid or the heating edge above the crock.
- Ignoring the temperature limit in a recipe.
- Reusing a liner the maker calls disposable.
Slow Cooker Liner FAQ
Do liners fit every slow cooker?
Not always. Most 13 by 21 inch bags list 3 to 8 quarts, while larger pots call for the 14 by 22 inch size.
Can I use two liners?
Two makers here say a pair of liners can split one pot into two dishes. Check your own cooker’s manual first.
The Short Version
For a standard pot, the Reynolds regular. For single-pull stacking, the Syntus. For a resealable pack, the OLESBUR. For use notes, the SMARTAKE. For a big cooker, the oversized 50-count. For a mini pot, the Reynolds small.
