The process of securing an envelope closure without using saliva offers a hygienic alternative to the traditional method. This approach eliminates the potential transfer of germs and avoids the unpleasant taste of envelope adhesive. An example of this process involves using a damp sponge to moisten the glue strip.
Employing methods to close envelopes without licking is especially beneficial in environments where hygiene is paramount, such as businesses handling large volumes of mail or during cold and flu seasons. Historically, envelope adhesive has been known for its questionable taste and potential health concerns, leading to the development and adoption of alternative sealing techniques. Avoiding saliva also prevents potential damage to the envelope from excessive moisture.