Above three litres

The provision

"Wine may be bottled or packed in containers of 4 liters or larger if the containers are filled and labeled in quantities of even liters (4 liters, 5 liters, 6 liters, etc.)."

Which is a different kind of rule

Below three litres the question is whether a size is on a list. Above four litres the question is whether a number is a whole litre. A closed enumeration becomes an open test.

Note the gap

The list tops out at 3 litres and the even-litre provision starts at 4. There is no 3.5 litre wine, and the gap is in the regulation rather than in the market.

This is why boxed wine works

A bag-in-box at 3 litres is on the list, and at 5 litres it is an even litre. Both are lawful, which is exactly why those are the two sizes the format is sold in.

And why 4.5 litres is not a product

It would be a lawful bottle size for nothing. The rule is simple enough that it is easy to comply with and absolute enough that a near miss is a complete miss.

Packed, not just bottled

The wording covers containers packed as well as bottled, which is what brings a bag inside a carton inside the same rule as a glass bottle.

Large formats are a different packaging business

A 5 litre bag-in-box is a bag supplier, a tap supplier and a carton converter rather than a bottle supplier. Nothing in this catalog serves it, and that is worth saying plainly.

The warning type size changes up here too

The Government Warning minimum steps up above 3 litres. A large format is a different label layout as well as a different container.

References