The act of sealing an envelope with out utilizing saliva refers to using different strategies to stick the envelope flap to the physique of the envelope. For instance, this may contain utilizing glue sticks, tape, or envelope moisteners to create a safe closure.
This apply is important for hygiene causes, notably when processing massive volumes of mail. It additionally addresses issues concerning the disagreeable style of envelope adhesive and potential allergic reactions for some people. Traditionally, reliance on saliva was commonplace, however evolving well being consciousness and sensible options have pushed the adoption of other strategies.