How to wash a port wine glass without damaging it?

Purchasing a wine glassware set for enjoying Port wine can be quite expensive, especially for a designer set. Whether you use crystal glasses or not, after each tasting you can't avoid the step of rinsing your glasses to remove any remaining residue and prevent any unpleasant odors from emanating from your Port glassware .

Why is washing port glasses a critical moment?

Summary: For your glassware in general (glasses, carafes, etc.), washing can be a less than ideal cleaning experience as it carries risks. These risks include breakage, scratches, altered taste, and even dulling of your crystal.

The choice of design can present particularities that make them more fragile. If we take the example of a tulip glass for Port, the diameter of its rim is very thin because this is ideal for appreciating the full range of aromas. However, this thinness, combined with a specific bowl design, actually creates a fragility that makes it difficult to clean.

The golden rule, my advice as a wine merchant : After tasting a bottle of Port wine (red or white, it doesn't matter), it's ideal to clean it immediately. If your Port wines dry out in your glasses or decanter, you should use special cleaning beads to avoid breakage.

How to effectively wash a port glass by hand?

Summary: Handwashing a Port wine glass is recommended when your glasses have a very narrow diameter. Ideally, hold the glass by the stem (this also applies to champagne or beer glasses). Use the soft side of your sponge, then rinse thoroughly with water and always dry quickly with a microfiber towel.

5-step technique

A dishwasher for port glasses: good idea or bad idea?

Summary: Using a dishwasher is not recommended for crystal port glasses. However, for crystal glasses, a dishwasher is suitable because the material is much more robust. It is essential to space the glasses well to prevent breakage, use a delicate cycle, and of course, hand drying is ideal.

If you ask a wine merchant or any other professional in the industry, they will obviously tell you that you shouldn't use the dishwasher to wash a glass of port after tasting it. In reality, we'll see that you can, but under certain conditions.

Dishwasher hazards

• Micro-scratches: Repeated small impacts can cause micro-scratches that can worsen over time.
• Impacts: contact between glasses during the cycle, breakage of the fragile rim
• Excessive heat: embrittlement of the lead crystal (>60°C)
• Harsh detergents: dulling of shine, persistent chemical residues

If use is unavoidable (robust lenses only)

• Top basket only (away from heating element)
• Minimum spacing of 8-10 cm between each glass
• Delicate/crystal program, 45-50°C maximum
• Lozenges without harsh chemicals or perfume
• Exit immediately at the end of the cycle
• Wipe dry manually with a microfiber cloth — do not allow to dry in the dishwasher

Which products should be used and which should be absolutely avoided?

Summary: A neutral pH is ideal, and fragrance-free is even better. Water at 30-35°C is also recommended. And of course, a soft sponge, a little white vinegar, and a microfiber towel.

Our tip: To prevent limescale buildup or to remove limescale, simply soak your glass for 25 minutes in a solution of 50% white vinegar and 50% lukewarm water. Then rinse thoroughly.

What are the 6 mistakes that break your glasses?

Summary: There are six mistakes that can easily damage your Port wine glasses. As we've seen, holding them by the bowl, which is the thinnest surface, can cause damage. Cleaning several glasses at the same time also regularly causes damage. Washing with the rough side of a sponge will undoubtedly damage your glass. Air drying leaves streaks across the entire surface of the glass and will prevent the wine from forming its characteristic "legs" (or "tears").

1. Holding by the calyx during washing → Risk of twisting and breaking the foot. Solution: ALWAYS hold firmly by the foot.
2. Washing 3-4 glasses at the same time → Contact between glasses, chips at the rim. Solution: only one glass at a time, be patient.
3. Green side of the sponge → Invisible but cumulative scratches. Solution: use the soft side only or a special brush.
4. Air drying → Guaranteed opaque limescale film. Solution: immediate microfiber drying.
5. Hot water on cold glass → Thermal shock, invisible crack that breaks 2-3 uses later. Solution: always use lukewarm water (30-35°C).
6. Insufficient rinsing → Soap residue detectable by smell and taste. Solution: Rinse thoroughly until all foam disappears.

Conclusion: 3 minutes of care = years of durability

Handwashing remains the safest method for washing port wine glasses, especially crystal. However, while washing crystal glasses in a dishwasher is certainly possible, you must space them well apart and then dry them by hand.
Finally, the fundamental rule is to always hold the stem of the Port glass and dry it with a microfiber towel. Then, after each tasting, quickly rinse your glasses to prevent the Port wine from drying, and wash them immediately.

Would you like to learn more about Port wine tasting?

Discover our series of reports on this world now:

1. Discover: how to analyze the color of a Port wine
2. Or, to put it another way: How to properly store your glasses in Porto
3. And don't forget: The right size of a Port glass

Now you can buy a glass in Porto

Now you have enough knowledge to easily buy your first port glass. Discover a wide selection at low prices in our online shop. Delivery is free for your first order.