Screw Caps and Bottle Closures
When it comes to bottle closures, screw caps are becoming more and more popular.bottle screw caps They provide an airtight seal that helps the wine to age more quickly, and prevents cork taint that can ruin the wine. They also are a more environmentally friendly alternative to traditional natural wine corks. Cork trees are not renewable resources, and they take 25 years to grow enough to be harvested. Screw cap wine bottles are much lighter to ship, reducing the carbon footprint of transportation. They also use less foil over the neck, and are easier to open and close.
While there is no doubt that there is a certain sense of ceremony and romance to pulling a cork from a bottle, many winemakers are finding that screw caps can produce wines of equal quality.bottle screw caps Some even believe that some wines actually mature faster under screw caps because there is no need for the air seepage that a natural cork provides.
In addition, wineries can also save on shipping costs by using screw caps.bottle screw caps This can be especially helpful for smaller wineries that do not have the space or budget to store a lot of inventory in crates. This can be an especially important consideration for small wineries, which often are located in rural areas where shipping costs can be high.
There are several different types of screw caps available, and it is important to match the right one with the proper bottle finish.bottle screw caps For example, continuous thread caps are pre-formed and can be hand-screwed onto the bottle or placed with a machine. Roll-on pilfer proof caps (also known as ROPP) require machinery to form the threads and seal to the neck of the bottle. These are the most common type of screw cap used for both wine and spirits bottles.
Regardless of the type of cap, it is important that it fits properly to prevent leaking and spills, as well as to maintain an airtight seal. In addition, the lining of the cap should meet the bottle specifications for chemical compatibility, durability, and temperature tolerance.
The Neck Finish of the Bottle
The neck finish of a bottle refers to where the outer threads of the container connect to the neck of the bottle, which is the part that holds the cap or closure in place. The finish of a container can be identified by looking for a raised ring around the outside of the neck, or by measuring the height of the neck's inner wall.
The most common screw-type caps are made of aluminum or plastic, and preserve a variety of liquids from beauty products to honey and from pharmaceutical vials to chemical drums. Other styles of bottle closures include flip top lids, which are used for squeezable containers stored cap downward and feature a spout that hinges up to dispense the product, and then flips down to block it. Another variation is the flip spout cap, which can be found on dispensing bottles for shampoo and toothpaste.