When turpentine is present in evergreen tree sap, this “pitch” is sticky and soft. If we get rid of the turpentine, however, the sap will be rock hard. This is the secret of pitch glue. Collect some old crusty dried evergreen sap or fresh sticky flowing sap (or a blend of both). Place it in a can you don’t care about, and cook the sap over a medium heat, stirring often. It may flame up, but don’t be alarmed. You’re getting rid of the turpentine. When it has cooked for more than ten minutes (you’ll need more cooking time for larger batches), add some powdered charcoal to the hot sap and stir it in thoroughly. This can cool down for storage or be used immediately. Preheat the objects you intend to glue together, apply the hot glue and let the “glue job” cool completely before handling. Pitch glue makes a strong adhesive that is largely waterproof, though it can be brittle and it will melt if used near a hot fire.