A buyer’s food-safety question usually starts simply: is this bag safe for food? For polyethylene the short answer is yes, if the resin is a food-contact grade and nothing unsuitable has been added. HDPE, LDPE and LLDPE are all used for food bags. The real choice is which one suits your product, your shelf and your customers.
What makes a plastic bag food safe
Polyethylene is a simple, stable polymer with no plasticisers. That is why it is the default film for bread, produce, meat, frozen goods and deli counters. Safety depends less on the polymer family than on the details: a virgin food-contact resin, inks and additives suited to food use, and a clean production environment.
For buyers, this means asking for paperwork, not just a description. Hanpak’s food-contact bags are made from resin that complies with FDA 21 CFR 177.1520, the US rule for polyolefins in contact with food. SGS test reports are available for many products, and for other items SGS testing can be arranged on your order.
HDPE, LDPE and LLDPE for food
| Film | Character | Good food uses |
|---|---|---|
| HDPE | Thin, crisp, strong for its weight, slightly hazy | Produce bags on roll, deli and takeaway bags, bread counters |
| LDPE | Soft, clear, glossy, easy to seal | Zipper bags, sandwich bags, bakery bags, display packs |
| LLDPE | Tough and puncture resistant at a lower gauge | Frozen food, meat and fish, heavier bulk items |
Clarity sells food on the shelf, so LDPE is popular where shoppers need to see the product. HDPE wins on cost per bag for quick, light uses such as produce bags on roll. LLDPE, often blended with LDPE, handles cold and sharp edges better, which matters for frozen goods.
Matching the bag to the food
Think about what the food does to the bag. Wet, oily or acidic products test the seal. Frozen products make film brittle unless the gauge and blend are right. Bones and shells test puncture resistance. Bread needs a bag that keeps moisture in without trapping condensation, which is why many bakeries use micro-perforated film or wicket bread bags.
Resealable formats add value for retail ranges. Our zipper bags come in LDPE or LLDPE from 40 to 100 microns, plain or embossed, with up to three print colours.
If a bag will carry a printed design and touch food directly, it is worth checking where the print sits. Many buyers keep the ink on the outside face, or leave a clear window, so the food never touches the printed surface. It is an easy decision to make at the artwork stage and a hard one to change after production.
From the Hanpak team
Ordering food bags from Hanpak
Send us the food, the pack size and your target market and we will quote within 48 hours. MOQ is flexible and quoted per size and design. Production takes 4 to 6 weeks for a first order and 3 to 4 weeks for repeat orders, counted from sample approval, and every pack carries a lot number. You can request a quote or samples through our website or message the team on WhatsApp. Samples are free.