A solid, timeless glass built for classic serves.
The Schott Zwiesel Convention Whisky Double Old Fashioned Glass 300 ml from Schott Zwiesel delivers durability and simplicity in a clean, straight-sided design. Part of the reliable Convention range, it suits any setting from home bars to professional hospitality, offering a comfortable weight and balanced feel in hand. Ideal for whisky, spirits or short cocktails, it provides a refined yet practical drinking experience.
Crafted in Germany from Tritan crystal glass, it combines brilliant clarity with impressive strength for long-term, everyday use.

Features:
- 300 ml capacity ideal for whisky, spirits and short cocktails
- Tritan crystal glass for exceptional clarity and durability
- Machine-blown for consistent quality and finish
- Lead-free and food safe
- Dishwasher safe for easy care
- Environmentally friendly production
- Made in Germany
A dependable and versatile glass that pairs classic styling with modern durability, perfect for enjoying your favourite spirits with confidence.
SHOP ALL CONVENTION
Whisky Double Old Fashion Glass
The Schott Zwiesel Convention whiskey glass, with its sturdy design, is a great addition to any bar. Its heavy base is especially stable and optimally accentuates whiskey flavours.
- Dimensions: Height 89mm | Width 80mm
- Capacity: 300ml
- Size #60
Read our About Schott Zwiesel / Zwiesel Glas blog to take in all the tradition, class, heritage, environmental efforts, accolades and more behind this brand

Sounds like Zwiesel
| Capacity: |
300ml
|
| Features: |
Dishwasher Safe
|
| Material: |
Triton Crystal
|
Glass Care –Â Keeping your glasses brilliant with perfect cleaning
Although Zwiesel glasses are manufactured with passion and in accordance with the highest industry standards, it should be emphasized that each product is made of glass which, in itself, is a brittle material that, if not handled properly, may break or crack. We, therefore, kindly ask and encourage you to carefully read the below guideline on care and cleaning of your glasses to ensure a long-lasting and unmistakable product experience:
Dishwasher
- Check filter inserts, nozzles and spray arms for cleanliness.
- Keep all food residue out of the dishwasher.
- Use a larger detergent dose for dried-up food residue.
- Apply softening, partial or full desalination agents depending on water quality.
- Open the dishwasher promptly after the rinse cycle to allow steam to escape.
Dish Towel
- Use dishtowels made of lint-free material. Pure linen or microfiber is best.
- Never use your polishing cloth for other purposes to avoid odour and grease residue.
- Launder dish towels without adding starch and fabric softener as a general rule.
- Try Zwiesel’s special polishing cloths for perfect cleaning
Polishing
- Avoid leaving fingerprints when taking glasses out of the dishwasher.
- Lift glasses by their stem or foot when removing them.
- Polish the bowl and foot of thin-walled and handmade glasses separately to avoid breakage.
- Never hold the glass by the base plate when cleaning the bowl. The pressure may lead to breaking the stem.
- Hands must be absolutely clean. Keep paper towels near the dishwasher to encourage hand washing and drying.
- Never breathe on glasses or spray them with cleaning agents. Lightly moisten them with water vapour instead.
Inspection
- Visually inspect your polishing results by carefully holding the glass up to the light.
- The brilliant clarity of crystal glasses brings out the best of a wine‘s colour.
About Schott Zwiesel and Zwiesel Glas
Schott Zwiesel glassware has been setting standards for years with modern products. Schott Zwiesel is the market leader of crystal glasses and is the sub-brand of the new umbrella company Zwiesel Glas.
Sommeliers, winemakers, internationally acclaimed chefs and top hotels in over 130 countries value the brand of Schott Zwiesel and have done so for over 150 years. They create timelessly modern designs and excellent applications for crystal glass, which reflect the latest trends.
Zwiesel Glas strives to protect the environment and has received an ecological profile with its patented TRITAN® Technology. Not only does Schott Zwiesel produce glassware that is protected from scratches, but it is also shatter-resistant, lead and barium-free, dishwasher safe and can achieve all this with the smallest possible burden to the environment!
Customers' review
5 stars
0
0 %
4 stars
0
0 %
3 stars
0
0 %
2 stars
0
0 %
1 star
0
0 %
Only logged in customers who have purchased this product may write a review.