The Complete Guide to Food Packaging Coding in Malaysia: Industrial vs. Edible Inks Explained

In Malaysia’s highly regulated food and beverage (F&B) manufacturing sector, compliance with strict standards like MeSTI, HACCP, and Halal certification is non-negotiable. A critical part of this compliance is ensuring that every product features clear, legible, and accurate expiry dates, batch numbers, and barcodes.

However, when upgrading their production lines, many manufacturers face a common point of confusion: What is the difference between edible ink and industrial packaging ink, and which one do I need?

As experts in industrial coding and marking at PTS Technology, we have created this educational guide to help Malaysian F&B business owners choose the right Thermal Inkjet (TIJ) technology for their production lines while maintaining the highest levels of consumer safety.

1. What is Edible Ink? (Direct-to-Food Printing)

Edible ink is a specialized, food-grade liquid formulated from FDA-approved food coloring and edible carriers (like ethanol or purified water).

• Application: It is used strictly for printing directly onto the surface of food items.
• Common Uses: You will see edible inks used in bakeries to print logos on cakes, on pharmaceutical capsules, or directly onto the shells of graded eggs.
• Durability: Because it is designed to be safely consumed by humans, edible ink is generally not waterproof, easily smudges, and cannot adhere to industrial plastics or metals.

2. What is Industrial Packaging Ink? (Indirect Food Contact)

Industrial packaging ink—such as the high-performance water-based and solvent-based inks used in Bentsai TIJ Printers (like the HH6205BL and HH6210BL series)—is engineered specifically for external packaging.

• Important Distinction: Industrial inks are not food-grade and are not edible. They must never be used to print directly onto food surfaces or in a way where the ink could seep into the consumable product.
• Application: These inks contain specialized chemical binders and fast-drying solvents designed to adhere permanently to difficult, non-porous surfaces.
• Common Uses: Printing expiry dates on plastic vacuum pouches, batch codes on glass sauce bottles, QR codes on aluminum cans, or shipping details on corrugated carton boxes.

Why Industrial Inks Are Crucial for F&B Packaging

While edible inks serve a niche purpose for direct food decoration, 99% of food manufacturers require industrial-grade ink for their packaging. Here is why solutions like Bentsai are the industry standard for packaging:

• Durability in Extreme Conditions: Food packaging often goes through cold chains, condensation, and freezing environments (like seafood or frozen meat exports). Bentsai’s fast-drying solvent inks are waterproof and smudge-proof, ensuring the expiry date remains readable from the factory to the supermarket freezer.
• Versatility Across Substrates: Edible inks cannot stick to plastic. Bentsai industrial inks provide 600 DPI high-resolution printing on almost any packaging material, including LDPE/HDPE plastics, foil wrappers, glass, and metal.
• Speed and Efficiency: Industrial inks dry in seconds, allowing items to pass through automated conveyor belts quickly without transferring ink onto the machinery or other products.

Best Practices for Safe Food Packaging Coding

To ensure food safety while utilizing high-performance industrial inline printers, manufacturers should follow these standard operating procedures:

1. Print on the Outside: Always print batch codes and expiry dates on the external layer of the packaging.
2. Ensure Proper Curing Time: Allow the fast-drying industrial ink a few seconds to cure completely on the packaging before the items are stacked or boxed.
3. Prevent Migration: Ensure the packaging material is sufficiently thick and appropriate for food storage so that external industrial inks cannot migrate through the plastic or paperboard into the food.

Conclusion: Choosing the Right Tool for the Job

Understanding the boundary between edible decoration and industrial traceability is vital for any food manufacturer. If you are decorating a cake, you need an edible ink supplier. But if you need to reliably, clearly, and permanently mark expiry dates and barcodes on your food wrappers, jars, and cartons—you need an industrial packaging solution from PTS Technology.