Choosing a melinjo
Is melinjo a fruit or a seed? It's actually a seed covered in skin.
There is no special way of choosing a melinjo (L. Gnetum Gnemon) seed because everything can be used.
The easiest way to choose it is through its color. A melinjo seed with green skin means that it's still unripe and very soft. While the seed with yellow or red skin is very hard. This is the one that is better to use in cooking.