Tri-Star (Enfield, Middlesex), is claiming to supply the world’s first ever clear biodegradable sandwich wedge. Available nationally, the product is both biodegradable and biocompostable.

The specially formulated material used to make the wedges is manufactured from polylactic acid (PLA), derived from dextrose obtained from corn starch. The material, which is safe for all types of food, is strong and lightweight and is said to biodegrade in a matter of weeks under the right conditions.