Cooker, Roaster and Air Fryer Liners Compared by Size and Fit

Size is the whole story with this one. Syntus cuts the liner at 10.5 by 17.5 inches and says it fits 1 to 3 quart pots. The spec sheet gives the capacity as 3 quarts, so that is the ceiling.

If your cooker is a small one that holds a dip or a batch of meatballs, the bag should sit properly. A family-size oval cooker falls outside what Syntus states. We would not stretch the claim.

The box holds 10 liners. Syntus says it stacks each liner on its own, so you pull one out without dragging the next one along. It contrasts that with other brands that stack liners together so they cling.

The material is a nylon blend. Syntus calls it BPA free and says it resists bone punctures and leaks.

It rates the liner for slow cooker use up to 400°F and says it also suits fridge storage, boiling and sous vide. Those are the brand's claims, and we pass them on as that.

The spec table also lists a wattage and a voltage of 1 and a touch control. Those are filler fields for a plastic bag, so ignore them.

Use is as simple as it gets. You set the liner over the cooker, put the food in the liner and cook.

Syntus also suggests two liners in one cooker to simmer two dishes at once. It gives no instructions for that trick, so treat it as an idea, not a method.

Buyers like it. About 85 percent of the ratings are five stars, and only about 2 percent are one or two stars. Reviewers talk about cleanup, since the whole bag goes in the trash and nothing needs washing.

One reviewer says it fit a small crock pot. Another calls the bags heavyweight and says they match the name brands. A third says one held up to overnight cooking, and two of the reviewers bought a 30 count box of the same liner.

A fourth reviewer used store-brand bags before and says those came in no size options. This set gave them a choice of size and, in their words, a better deal. That is the point of the small size: you buy the bag that matches the pot instead of folding a big one down.

The weak spot is what the written reviews leave out. We could read no critical review, so the few low star ratings stay unexplained.

The one limit we can name is on the product page: this is a small-pot liner, and it does not claim more. If you cook for a crowd in a bigger pot, buy something labeled for it.

This is the only set here for big appliances. Syntus says each liner measures 34 by 18 inches and fits 16, 18 and 22 quart electric roasters or slow cookers. A box holds 4 liners and weighs 3.2 ounces.

If you own a holiday-size roaster, this is the one that matches your pan on paper. Then read the rules, because they are strict and they come from Syntus.

The brand says these liners are designed for water-based cooking: soups, stews and other dishes cooked with water. It says not to use them for dry cooking, roasting a turkey or roasting other meats without water.

It also says to keep the cooking temperature below 350°F. Despite the roaster name, this is a soup and stew bag.

There is a setup step too. Before cooking, Syntus says to add 6 to 10 ounces of water to the pan and wet the inner walls evenly. Then you preheat the roaster for 2 to 3 minutes.

Only after that do you place the liner, add the ingredients and the water the recipe needs, and start cooking. The brand says the wet walls and the short preheat help the roaster heat evenly and keep the liner from sticking. Skip that step and you ignore the brand's own instructions.

The material is food-grade nylon, which Syntus calls BPA-free and durable. It also calls the liners leak-proof and heat-resistant up to 350°F. Those are the brand's claims.

Cleanup is the selling point: lift out the used liner, throw it away and wipe the pan.

The buyer evidence is thin, and it splits. We could read two written reviews. One buyer says that after following the directions the liner held up through more than 12 hours of simmering.

The other says they followed the instructions printed on the packaging and the liner melted onto their electric roaster oven and ruined it. That is a serious report. The review does not say what was cooked or at what setting, so we can't judge the cause.

The star breakdown leans the same way. About 69 percent of ratings are five stars and 11 percent are one star, a heavier low tail than the other two sets show. The rating count is small, so those numbers move easily.

Who should skip it? Anyone who wants to roast meat, anyone whose roaster runs hotter than 350°F and anyone who won't do the pre-wet step.

If your cooking is stew, chili or soup in a large pan, it fits that job. We would still follow the brand's steps exactly and watch the first batch.

These are not bags. They are white parchment paper rounds, 8 inches across, and the box holds 100 of them. Juvale says they are pre-cut and perforated, built for round air fryer baskets and steamer baskets, and rated to 428°F.

Fit is the question, and Juvale is narrow on it. It states one size, 8 inches, and the spec sheet lists a round sheet of 8 by 8 inches. It does not list the basket diameters or the air fryer capacities that size matches, so measure the floor of your basket before you buy.

Buyers give us some help. A reviewer with a Teflon air fryer says the sheet was just the size for it. Another says it fit both an air fryer and a bamboo steamer.

Some reviews carry a 10 inch size label, so a larger sheet exists. The product page here describes only the 8 inch box and says nothing about the other size. If your basket is bigger than 8 inches, look for the larger sheet and check its stated size before you buy.

There is one safety line that matters. Juvale says the liners should be weighed down with food so they do not touch the heating elements. That leaves little room for a loose sheet in an empty basket, so put the food on the paper.

Juvale also says the sheets spread heat evenly and stop food from sticking, and that the translucent paper catches crumbs. Those are claims from the brand. It does not say what the perforations are for, and we have no reading of our own to add.

Buyers like these. About 78 percent of ratings are five stars and 15 percent are four. Reviewers say the sheets are easier than cutting your own from a roll, that the paper does not rip or get too toasty looking, and that dim sum does not stick.

The written reviews we could read had no real complaint, so the few ratings of three stars or lower are unexplained. The only flaw we can name is one built into paper: each sheet is used once, and the round shape suits round baskets best.

This is a good pick if you cook often in a round basket or steamer and you are tired of trimming parchment. If you have a square basket, or a model much wider than 8 inches, skip it. It is not a slow cooker or roaster liner either, and Juvale does not claim it is.

Treat it as a basket and steamer accessory with a 428°F ceiling, and keep it out of the slow cooker.