Foil, plastic, foam-type things are on the orange juice and the coffee creamer and the Tylenol, etc. Why not on milk jugs?
I thought maybe heat issues, but it’s already undergone multiple heat treatments. Also thought maybe cause the product is so quickly meant to use, not worth the time. Then I thought, the attempt to make containers as thin as possible, and general motion would crack seal.
In: Technology
I should have stated, US based. I’m all about the other options I’ve seen in travels – bagged, always waxed carton with plastic seal, etc. But this is totally the ubiquitous US plastic jug – and it comes in all the half/pints/quarts/gallons.
I demonstrated my confusion the other day when I ensured hand-tight, unopen gallon … Then squeezed it. Sure enough, milk came out. To confirm it wasn’t an expansion thing, viscosity, bubbly-shaky – I grabbed a gallon tea that I knew wasn’t sold with seal, then a lemonade. Same results.
Hmm… all the milk jugs I’ve bought here so far (UK) have foil seals. So it’s surely possible and has helped prevent quits a few spills. Those screw tops come off by accident way too easily.
Milk jugs don’t have foil seals because milk has a relatively short shelf life even if the container is sealed. All the products you used as comparatives have much longer er shelf lives.
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