In short: For wholesale bakeries and bread brands, the right custom bag depends on the product: sandwich loaves and toast bread do well in 0.03–0.04 mm LDPE or CPE bags, crusty artisan loaves need micro-perforated film so the crust stays dry, and retail items such as cookies and pastries sell better in a window bag with a zipper or a die-cut handle bag. Heyi Custom Bags, with factories in Dongguan, China and Haiphong, Vietnam, produces all three formats from 5,000 pcs per design with 15–25 day lead times.
Bread is an unforgiving product to package: it is often bagged warm, releases moisture for hours, and has a short shelf life the bag can protect or shorten. Buyers who order bakery bags by the pallet ask the same three questions: which film, how thick, and which closure. This guide answers them with the specifications Heyi Custom Bags uses when quoting bakery customers in the USA, UK, Canada, Australia and the EU.
Three Bakery Bag Formats and When to Use Each
Toast and loaf bread bags are flat or side-gusseted, clear or lightly printed, sized for one loaf and closed with a twist tie, clip or adhesive strip. Window bread bags with zipper combine a printed body, a clear panel and a reclosable zipper, which suits sliced loaves, bagels, cookies and granola on a self-service shelf. Die-cut handle bakery bags are the carry-out option for cake boxes, pastry trays and bulk rolls, doubling as a branded shopping bag. Start from how the product is sold: self-service shelf, counter service or delivery.
Film Choice: LDPE, CPE, PP and Eco-Friendly Options
LDPE is the default for bread bags: food-safe, heat-sealable, flexible and clear enough to show the product. CPE is softer than LDPE and gives a matte, frosted look that suits premium bakery brands. OPP/CPP is stiffer and glossier, so it is the usual choice for window panels and for cookies or pastries where clarity sells. For sustainability requirements, Heyi Custom Bags offers PCR recycled PE, mono-material PE for recyclability, and PLA/PBAT compostable film.
Thickness Guide by Product
Bread bags are among the thinnest custom bags we make; buying too thick wastes material and slows automatic bagging lines. Heyi Custom Bags produces from 0.01 mm to 0.2 mm, so each range below can be adjusted to your line.
| Product | Recommended thickness | Typical material | Closure |
|---|---|---|---|
| Sandwich loaf / toast bread | 0.03–0.04 mm (30–40 micron) | LDPE or CPE, clear or 1–2 colour print | Twist tie, clip or adhesive strip |
| Artisan / crusty loaf | 0.03–0.05 mm, micro-perforated | LDPE or OPP | Open top or fold-over |
| Bagels, buns, rolls | 0.04–0.05 mm | LDPE, side gusset | Zipper or twist tie |
| Cookies, granola, snacks | 0.06–0.09 mm | Printed PE or laminate with OPP window | Reclosable zipper |
| Carry-out bakery bag | 0.05–0.08 mm | LDPE or HDPE, die-cut handle | Open top |
Micro-Perforation, Windows and Anti-Fog Film
Crusty bread in a sealed bag turns soft within hours because its moisture has nowhere to go. Micro-perforation, a pattern of needle holes in the film, lets that moisture escape while keeping dust out; a baguette needs a denser pattern than a brioche. Windows are clear OPP or PET panels sealed into a printed body; keep the window at least 10 mm from any seal line. For chilled or warm-bagged products, anti-fog film stops condensation clouding the product on the shelf.
Printing, Artwork and Food-Contact Compliance
Bread bags are usually printed in 1–4 colours by flexography; window bags and premium cookie pouches can go up to 10 colours with Pantone matching. On thin film, avoid reversed-out text below 6 pt and keep barcodes on the flat face, not across a gusset fold. Supply vector artwork with a dieline showing seal areas, window position and any perforation zone; see our guide on preparing artwork for custom printed packaging bags.
Any bag that touches bread must use food-contact-grade resin and ink. US buyers usually ask for FDA-compliant material declarations and EU buyers for Regulation (EC) 1935/2004 compliance, often with migration test reports. Heyi Custom Bags produces under ISO 9001 and ISO 14001 and holds GRS certification for recycled-content products; ask for declarations covering your exact film structure before the first shipment.
Specifications to Confirm Before Production
- Bag format: flat, side gusset, wicketed, zipper or die-cut handle.
- Dimensions in mm: width × length, gusset depth, window size and position.
- Film and thickness, for example LDPE 0.035 mm, clear, anti-fog.
- Perforation: yes or no, and the bread type it is matched to.
- Print: number of colours, Pantone references, one or two sides.
- Quantity: 5,000 pcs per design minimum; we serve bakery chains, brands and wholesale distributors buying in production volumes.
FAQ
What thickness should a custom bread bag be?
Most sandwich loaf and toast bread bags are 0.03–0.04 mm (30–40 micron) LDPE, strong enough for a 700–900 g loaf while thin enough for automatic bagging. Retail bags with a zipper or heavier contents such as cookies usually run 0.06–0.09 mm.
Why do artisan bread bags have small holes?
The holes are micro-perforations that let moisture escape so a crusty loaf does not go soft inside the bag. The perforation density is matched to the bread type, and the film still protects the product from dust and handling.
Can bakery bags be made from compostable or recycled material?
Yes. Heyi Custom Bags produces bakery bags in PCR recycled PE, mono-material PE and PLA/PBAT compostable film, all available custom printed from 5,000 pcs per design.
What is the minimum order and lead time for custom bakery bags?
The minimum order at Heyi Custom Bags is 5,000 pcs per design, and production takes 15–25 days after artwork approval, with direct shipping to the USA, UK, Canada, Australia and the EU.
Custom Bread and Bakery Bags From Heyi Custom Bags
Heyi Custom Bags has made custom plastic packaging since 2016 at three factories in Dongguan, China and one in Haiphong, Vietnam, with around 500 staff. For bakery customers we supply toast and loaf bread bags, window bread bags with zipper and die-cut handle bakery bags. Send your loaf dimensions, target thickness and artwork through our custom zipper bag quote form or custom handle bag quote form for a specification and quotation. For converting micron, mil and gauge, see our plastic bag thickness guide.