The 270ml rocks glass in two lines
The 270ml rocks glass is a stackable glass tumbler holding 270 millilitres brim full, in packs of six. The supplier sheet also states the figure that really counts, which is rare: the usable capacity once the ice is in, around 5 ounces.
Who it is for
For anyone who wants one middle size that covers almost everything. Two hundred and seventy millilitres sit between the short spirit glass and the double old fashioned: they carry a drink on ice, an amaro, an iced coffee, without specialising in any of them. In a general venue this is the line bought by the case.
Brim full and usable capacity
This is the most useful distinction in the whole range, and almost no catalogue states it. Brim full capacity is how much the glass holds filled to the lip, a condition that never happens in service. Usable capacity is how much liquid actually goes in once the ice is there and the margin below the rim is left: here that is around 5 ounces, less than half the nominal volume. When comparing two glasses from different categories it is the usable capacity to look at, otherwise you buy a format that looks large and serves small portions.
Specifications
- Brim full capacity: 270ml
- Usable capacity with ice: around 5oz
- Category: on the rocks, stackable
- Pack quantity: 6 glasses
- Material: glass
- Dishwasher safe: yes, including the commercial cycle
Choose the 270ml rocks glass if
You want one format for the running service on ice. For classics built on a single large cube you want the double old fashioned glasses from 330ml up, where the cube goes in without stealing room from the measure.
How much ice, and why skimping costs you
The temptation to use less ice so there is more liquid is the most common mistake of inexperienced service, and it produces the opposite of what it intends. Ice chills by giving up water, and how much it gives up depends on how quickly it warms: a few cubes in a nearly empty glass melt at once and water the drink down before it is half gone. Filling properly means a drink that reaches the bottom the way it started, and the guest reads that as generous rather than watered.
Stacking and the space it saves
On a running service fit out, where pieces are counted in dozens, footprint is a hidden cost. A stackable glass takes up height instead of surface, and that doubles the capacity of the same shelf and the same dishwasher basket. The rule is to keep the stacks low: even on models built to stack, a tall column concentrates the weight on the rim of the bottom glass, which is the most fragile point.
Care
Dishwasher with no special precautions. Stack only when dry, because water left between two walls leaves rings that then come off by hand. Plain glass has no cut for residue to sit in, so it is the fastest wash in the category.
The most used glass on the bar
In most venues the 270ml rocks glass is the line that goes out most often in a night, because it covers amari, spirits on ice, iced coffees and short soft drinks. It is also the one that breaks most, precisely because it keeps changing hands. It is worth treating it as a consumable and always keeping one sealed pack in reserve.
FAQ
Why does the 270ml rocks glass state two capacities? Because the second one counts: with ice and the margin below the rim, the real liquid is around 5 ounces.
Does it suit amari? Yes, and it is one of its most frequent uses in a general bar.
Does it stack with the other rocks glasses? With models from the same line, yes. Across different lines it is not guaranteed.
Does it take the commercial dishwasher? Yes, and it is built for constant turnover.
Does a 5cm cube fit? It goes in, but it leaves little liquid: for that you want 330ml and up.
The more you buy, the less you pay: 4 packs -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 sizes in the category are compared in the stackable glassware guide.
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