Maple Syrup Producers prefer Sugarhill® Containers For over thirty years, Sugar Hill Maple Containers has been the plastic container of choice for Pure Maple Syrup producers throughout the United States. Oxygen permeation has been known to darken maple syrup, causing it to lose grade over time. Our patented technology, for the Sugar Hill Maple Containers, was designed to add an oxygen barrier coating on the plastic container to significantly reduce oxygen permeation. This process has been tested and proven to extend grade life. It also has the added benefits of print protection and a glossy finish. XL coating continues to grow as a percentage of total Sugarhill Containers sold.