The polypropylene Rock Juice in two lines
The Rock Juice is a 350ml tumbler in milk white polypropylene: unbreakable, stackable and heat resistant. It is the large size of the unbreakable line, made for soft drinks and long drinks away from the bar counter.
Who it is for
For operators who serve in volume outdoors. Festivals, events, beach clubs, poolside service, private parties: places where glasses are counted in hundreds, glass is often banned, and nobody can pick up broken shards among the crowd. 350ml is a soft drink served with ice.
Polypropylene or polycarbonate
They are two different plastics, and you can see and feel the difference. Polycarbonate is clear and imitates glass; polypropylene is opaque, here milk white, and does not try to. In return polypropylene is lighter, cheaper, and does not suffer from scratches that cloud it, because it is not clear to begin with. If the drink needs to be seen, choose clear; if only the job counts, white costs less and ages better.
Specifications
- Capacity: 350ml
- Material: polypropylene, milk white
- Properties: unbreakable, resistant to high temperatures
- Stacking: yes, with a dedicated stacking design
- Use: outdoor service, events, soft drinks and long drinks
When opaque is an advantage
It looks like a drawback and in some settings it is not. An opaque tumbler hides smears, limescale and signs of use, which on event stock washed in a hurry, sometimes outdoors, cannot be avoided: a marked clear glass shows, a white one does not. It also hides the level of the drink, which on a free-flow service cuts the requests for top-ups. It is a practical choice, which is why milk white is the catering standard.
The life of an event stock
Outdoor stock is not lost to breakage but to dispersal: cups left on tables, taken home, thrown away by mistake. Unbreakable does not remove the problem, it moves it. That is why on these sizes an inexpensive model that is always available beats a nicer one that is hard to reorder.
Single-use or reusable
At an event the real choice is between single-use and reusable. The Rock Juice costs more than a disposable cup at the first purchase and much less by the tenth evening, and it removes the disposal of hundreds of cups. Operators who run events regularly pay back the stock in a few outings.
Care
Dishwasher safe with a mild detergent. Polypropylene takes high temperatures, but very hot cycles repeated over time can slightly warp the rim: if the machine has a gentle programme for plastics, use it. Stack when dry.
FAQ
Is it clear? No, it is opaque milk white. For a clear cup, polycarbonate is the material.
Does it break? It is unbreakable in normal use.
Is it dishwasher safe? Yes, preferably on a cycle that is not too hot.
Can it be personalised? Not with the hot printing used on glass: polypropylene needs different techniques.
Can it go in the freezer? Better not: repeated extreme swings stiffen the plastic.
The more you buy, the less you pay: 4 pieces -5%, 6 -7%, 8 -10%, on the same item.
Dispatched from Rome, Italy. 15-day returns, free of charge. Questions before you order? Message us on WhatsApp on +39 351 929 6937.
The materials in the category are compared in the stackable glasses guide.














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