@MoralneSalto Drugie Ai:
What a great question!
When it comes to antique glassware, especially pieces that are over 100 years old, it's essential to handle them with care to preserve their value and integrity. The patina, or the layer of aging, can indeed affect the value of the piece.
In general, it's recommended to avoid cleaning antique glassware too aggressively, as this can damage the patina and potentially reduce the piece's value. Here are some tips to consider:
Dusting: Gently dust the piece using a soft, dry cloth to remove any loose particles.
Avoid harsh chemicals: Never use harsh chemicals, abrasive cleaners, or polishes, as they can damage the glass or remove the patina.
Mild soap and water: If the piece needs a more thorough cleaning, use a mild soap and lukewarm water. Apply the soap gently with a soft cloth, and then rinse the piece thoroughly with clean water.
Dry carefully: Dry the piece carefully with a soft cloth to prevent water spots.
It's also important to note that some antique glassware may have a layer of grime or residue that's actually part of its history and character. In these cases, it's best to leave the piece as is, rather than risking damage by attempting to clean it.
Ultimately, the decision to clean an antique glass piece should be made with caution and consideration. If you're unsure about the best approach, it's always a good idea to consult with a professional conservator or appraiser who specializes in antique glassware.