Food shrink wrapping

Which shrink films are food-safe, what 'FDA compliant' means, anti-fog and bakery films, barrier bags for meat and cheese, and machines for food.

Updated October 2, 2026

Food-safe shrink film

Use a film whose supplier documents cover your exact food-contact use. Many polyolefin shrink films qualify. But the polymer name alone neither proves nor rules out compliance. Check the food type, contact time, and temperature.

Uline’s PVC dome-bag listing says FDA compliant. But Uline’s shrink-film comparison marks its PVC roll film as not suited for direct food contact. These are different products. The dome-bag page does not state every food-contact condition the bag is cleared for. Ask for its compliance documents. Don’t assume the claim covers only packaged food, or that it covers all unwrapped food.

What “FDA compliant” means

FDA explains that a food-contact material’s compliance depends on the substances in it and its intended use. Compliance can come from several routes:

• a regulation
• an effective food-contact notification
• GRAS (generally recognized as safe) status
• a prior sanction
• a threshold-of-regulation exemption

Some notifications apply only to the named maker and the stated conditions. A general marketing label does not replace the product’s compliance documents.

For polyolefin films, the key rule is 21 CFR 177.1520. It allows olefin polymers such as polyethylene and polypropylene “in contact with food, subject to the provisions of this section”. Its specs and extraction limits vary by polymer and intended use. One citation does not authorize every film formula or food-contact condition.

When a film is labeled “FDA compliant,” confirm which authorizations and use limits support that claim. If you run a food business, ask the film supplier for a letter of compliance. It should name the film and your use, including temperature.

USDA does not pre-approve packaging either. Meat and poultry plants inspected by USDA’s FSIS must keep a guaranty from each packaging supplier (9 CFR 317.24, 9 CFR 381.144). The guaranty states that the material’s intended use complies with the Federal Food, Drug, and Cosmetic Act and food additive regulations. That includes conditions of use such as temperature limits. Inspectors accept the guaranty as the basis for compliance, and FSIS can question it. If a supplier says “USDA approved,” ask what documents back that wording. Don’t treat it as proof that the agency pre-approved the material.

Films for specific foods

Produce and refrigerated food. Cold, moist products fog the inside of the film. Anti-fog film helps reduce visible fogging. Results still depend on the film and the use. Cryovac’s RD-45 is “ideal for refrigerated products.” Clysar sells EV-HPG AF, with micro-perforated options for produce that needs to breathe.

Bakery. Clysar makes bakery films, including microperforated film for donuts, cookies, and cupcakes.

Gift baskets and candy. Most baskets hold packaged food, so the shrink bag covers the basket, not the food. See gift baskets.

Pizza shrink wrap machines

Food-contact polyolefin is one option for pizza packaging. Match the exact film and machine to your needs. That means the food-contact conditions, product temperature, package format, and required output.

• One pizza at a time. Heat Seal’s PC-1318 pizza capper is a tabletop unit with a heated element. Its standard platform takes pizzas up to 13 inches across. An optional platform takes pizzas up to 18 inches.
• L-bar sealer and tunnel. Texwrap lists its TLS L-sealers for pizza next to its side sealers. The L-bar seals the film around a boxed or boarded pizza, and the tunnel shrinks it.
• Side sealer for high volume. Texwrap calls its OSS orbital side sealer its fastest pizza machine. It shows the OSS-209 wrapping pizzas at up to 160 per minute. Compare L-bar and side sealers before you choose.

For film, Clysar recommends EV-HPG for rigid pizza boxes and ULTRA LEG for delicate frozen items. Its general-purpose ABL film is made for L-sealers and “remains durable at freezer temperatures”.

Clysar’s food-contact compliance does not cover cooking in the film. Its ABL data sheet says its films comply with 21 CFR 177.1520 “except for articles used for packing or holding food during cooking.” The same sheet says Clysar “does not recommend using traditional heating or cooking methods for foods wrapped in Clysar® shrink films.” The film maker may document a cooking use. If it doesn’t, tell customers to remove the film before they bake a frozen pizza or warm a baked good.

Meat shrink bags and retail overwrap

The vented retail overwrap covered on this site is not an airtight barrier package. Fresh and frozen meat, cheese, and fish are often packed in vacuum shrink bags instead. This is different equipment from an L-bar sealer.

The process is vacuum, seal, then shrink. The product goes in the bag. A vacuum machine removes the air and seals the bag. Then the bag is shrunk tight in hot water. Sealed Air’s Cryovac shrink tunnels use “hot water heated by either steam or electricity.” They are built for vacuum-sealed protein. Henkelman runs its dip tanks at 175 to 195°F for about 3 to 5 seconds.

There are two main types of bag:

• Barrier bags. Cryovac barrier bags are multi-layer bags that block oxygen and moisture. Sealed Air lists them for fresh meats, cheeses, fish, and smoked and processed meats, to extend shelf life.
• Non-barrier bags. Sealed Air also sells non-barrier shrink bags that let some gas through. They are for products such as fresh poultry and seafood. Its 10K OTR bag for seafood has an oxygen transmission rate of over 10,000 cc/m² per 24 hours.

Don’t assume ordinary retail centerfold shrink film blocks oxygen. Clysar’s ABL data sheet lists oxygen transmission of 600 to 1,000 cc per 100 sq. in. per 24 hours, depending on gauge. That converts to roughly 9,300 to 15,500 cc/m² per 24 hours under that data sheet’s test conditions. You can only compare transmission numbers from different films when the test matches. That means the same temperature, humidity, thickness, and test method. L-bar film is also usually perforated so air can escape in the tunnel.

If oxygen control or shelf life matters, have a qualified food-packaging specialist specify and validate the whole package and process. An L-bar overwrap does not replace a validated barrier system.

Freezer shrink wrap

Freezer packaging has to keep moisture in and air out. The National Center for Home Food Preservation says freezer packaging should be “moisture vapor resistant”. It should not become brittle and crack at low temperatures. It should also have as much air removed as possible before closing.

• Frozen meat, fish, and cheese: makers use the vacuum shrink bags above. Sealed Air says its barrier bags guard against “the ingress of oxygen, moisture, light, and other contaminants”.
• Boxed or trayed frozen goods such as pizza: polyolefin shrink film on an L-bar or side sealer works. Clysar sells its pizza and frozen food films for their “advanced moisture/vapor properties”. If the package needs to be airtight, have the supplier specify and validate the film, seal, and shrinking process. Leaving out the holes does not by itself make a package airtight. See perforation.

The supplier guaranty rules above apply to meat bags too. USDA does not pre-approve the bag. Plants keep a guaranty from the bag supplier, as described in what “FDA compliant” means.

Machines used for food

• Hooded chamber machines such as the Minipack FM 760 suit small bakeries and specialty food makers. It has a 17.5 × 22 in. seal area and a stainless steel build.
• L-bar sealers and tunnels from Eastey, Heat Seal, and others run food with food-contact polyolefin film. Eastey shows automatic L-sealing and labeling of produce in one pass.
• Side sealers from Texwrap and others handle high-volume pizza, bakery, and produce. See side sealers.

For food, weigh hygiene, ease of cleaning, product temperature, and the packing process. Weigh them along with speed, size, and budget. See shrink wrap machines. Choose and validate the food-contact film and the machine together.

Recycling

• Sealed Air says its #4 LDPE shrink films “can be recycled, but are not generally collected at curbside.”
• Clysar says six of its films are prequalified for How2Recycle Store Drop-Off.
• How2Recycle Store Drop-Off takes flexible polyethylene-based plastics such as #2 and #4 film. PVC (#3) film is not on that list.
• Some barrier bags are now sold as recycle-ready. Sealed Air lists recycle-ready presentation barrier bags that work with specified PE recycling streams. This does not guarantee local collection. It also does not guarantee that food-soiled bags will be accepted.

Check the film’s data sheet or How2Recycle label before you tell customers a package is recyclable.