Most seafoam sea glass shards come from old Coca-Cola bottles and other soda bottles, beer bottles, fruit jars, baking soda bottles, and ink bottles.
Because Coca-Cola bottles were so popular and difficult to transport, many were made locally around the world, so the green hue varied from soft green to soft green with a tint of blue.
While RC Cola and Dr. Pepper produced soda bottles in soft green for a time, many of bottles made in the soft green, seafoam color were manufactured by Coca-Cola beginning in the late 1800s to mid 1900s.
Older Seafoam Sea Glass
Thicker shards of seafoam sea glass with a blue tint are probably older, especially if bubbles appear inside the sea glass.
Odds of Finding a Seafoam Sea Glass Shard
The odds of finding a seafoam sea glass shard are about 1 in 100 or more. The best way to find seafoam sea glass is to look on beaches that had a large population of visitors during the past one hundred years.
During the 1900s, glass soda bottle companies started to mass produce their bottles in clear glass.