Dairy is one category on the shelf and five different jobs on the floor. Yogurt is a cup filling job. Sliced cheese is a tray sealing job. Block cheese is a film job. Ice cream is a cold chain job before it is a packaging job at all.
What they share is the pressure: days of shelf life rather than months, hygiene standards that shape the machine, and a buyer who will reject a pallet on how the seal looks.
Dairy products we build for
| Product | What your line has to handle |
|---|---|
| Milk and liquid dairy | Fill temperature, and a hygiene regime the machine has to live with daily |
| Yogurt | Accurate fill weight and a lid that seals first time, cup after cup |
| Cheese – sliced or portioned | Shelf life bought at the seal, across a wet and fatty surface |
| Cheese – block | A film pack sized to the product, formed on the line |
| Butter and spreads | Heavy product and a clean cut-off without stringing |
| Ice cream and frozen desserts | Sealing cold, and a cold chain that never breaks |
What separates a good dairy line
Shelf life is bought at the seal
For cheese and other oxygen-sensitive products, the number worth holding a supplier to is the oxygen left inside the finished pack at full line speed — not the gas going in, and not a figure taken from a hand-run sample. Ask for it that way and the comparison between machines becomes straightforward.
Fat and moisture belong away from the seal
Dairy contaminates its own seal more readily than most products. Fat films the sealing surface, whey and brine sit in the rim, and both stop the film bonding. Handled properly at the filling stage, the sealing problem largely stops existing.
Cleaning time is production time
You clean more often and more thoroughly than most food producers, so cleaning belongs in the machine comparison rather than in the operating manual. How much of the machine comes apart, how much of that needs tools, and how those minutes multiply across your week — that arithmetic often decides between two machines with the same headline speed.
Frozen brings its own conditions
Anything sealed cold, or sealed warm and frozen afterwards, puts condensation at the seal and stress on the pack through the freeze. A specification written for chilled distribution needs checking again before it goes frozen.
Choosing the class
Yogurt, dips, desserts and other bought-in cups and tubs run on cup fill and seal at up to 120 cups per minute. Sliced cheese, portioned dairy and anything in a bought-in tray runs on tray sealing, sized to your trays. Block cheese and film-formed packs run on form fill and seal at 100–300 units per minute, which is where modified atmosphere is published.
Bring these to the first conversation
Your formats and fill weights, the shelf life you have promised your customer, and how many times a day the line stops for cleaning. Those three shape the specification more than throughput does, and they make a vendor’s answers much easier to compare.