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Ribbed tumblers
KROSNO ribbed tumblers are made in Poland, and their design is very much of the moment. The optic effect on the glass is one of the decorations people are asking for now. The range holds both machine-made and handmade models, all precisely finished and carefully judged. Ribbing means fine ridges on the surface, set in parallel lines that run straight or on the diagonal. The optic scatters light between those ridges, so the glass keeps catching the eye.
Ribbed tumblers — a design of their own
Ribbed tumblers have a look all their own. Diagonal lines cross the surface in irregular forms, like a wave rolling in. The decorative ribbing pairs classic proportions with a hint of the avant-garde, which places it squarely in Art Deco. The ribbed surface throws light back off the glass and produces striking optical effects. Drinks and cocktails look anything but ordinary in a clear tumbler with an optic. The effect is stylish, and it is practical too. The rippled surface sits well in the hand, so the glass does not slip.
Ribbed tumblers — what to serve in them
KROSNO optic tumblers are perfect for cocktails, soft drinks and water. Clear ribbed glass leaves the contents on display, which is worth using when you build an elegant serve. Pour a drink over ice, then finish it with fruit, edible flowers or another garnish. Ribbed tumblers, clear or coloured, work for everyday use and for special occasions alike. Choose the shape you like — from rounded, barrel-like forms to plain, tall tumblers. Capacities run right across the range, from 250 ml through 300 ml to 400 ml.
HOW LONG DOES IT TAKE TO PREPARE AND DELIVER AN ORDER?
Orders placed before 2 pm are dispatched the same working day. Orders placed later go out the next working day. Delivery within Poland usually takes 1–2 working days, unless a different lead time is shown on the product page.
HOW IS THE GLASS SECURED DURING TRANSPORT?
As a maker with many years of experience in producing and shipping glass, safe delivery is a priority for us. Every parcel goes through several stages of protection — from product quality control, through careful picking and packing, to secure transport with trusted couriers. Products are arranged and secured inside the packaging so that they cannot move in transit. Every parcel is insured as well. If damage still occurs despite our packing standards, you have 7 days to report a claim. We send replacements as quickly as we can, at our cost.
HOW TO CARE FOR GLASS SO THAT IT RETAINS ITS SHINE FOR AS LONG AS POSSIBLE?
To keep glass clear, bright and looking its best, it is worth reading the care guidelines linked below. Before first use, wash the piece in lukewarm water with a mild detergent, then dry it with a soft cloth. In everyday use, avoid sudden changes of temperature. Do not heat glass above 60°C or chill it quickly. Avoid differences greater than 35°C. Never use these products in a microwave, an oven or a freezer. If a piece is dishwasher safe, choose a glassware programme and use mild detergents and rinse aids. Load the items so that they do not touch. When the cycle ends, take the glass out and let it dry naturally. Larger pieces such as carafes, vases and cake stands are best washed by hand.
ARE ALL PRODUCTS DISHWASHER SAFE?
Not every product is dishwasher safe. You will always find this information on the product page or on the packaging. The symbol there shows whether a piece is suitable for automatic dishwashers. In most cases, undecorated glassware can go in the dishwasher.
DO YOU OFFER RETURNS OR EXCHANGES?
You may return an order within 14 days of receiving it, without giving a reason. To withdraw from the contract, send us an email at e-sklep@krosno.com or a letter to the Seller's address — no special form is required. Once you have notified us, return the product within 14 days, packed securely for transport. The cost of return postage is borne by the customer, unless the applicable regulations state otherwise.
WHAT MAKES HANDMADE GLASS DIFFERENT FROM MACHINE PRODUCTION?
Hand-formed glass is made by experienced master glassmakers who have carried the craft forward for generations. Each piece owes much to human work — from shaping the form to giving it its final character. That is what makes hand-formed glass distinctive, finely detailed and unlike anything else. Every piece has an individual character and a value of its own, while remaining remarkably consistent. Machine production relies on advanced glass-forming technology that delivers high precision, repeatability and efficiency, using top-class machinery. At Krosno Glass we use Blow-Blow technology, which allows us to create elegant pieces of consistent quality. We also use the finest premium lead-free crystal, which gives perfect clarity and durability, and resists clouding.