
STRONG
Dishwasher Safe
Eco-friendliness
Compliance to GMAJ
and EU definitions
of crystal glass

The World's First Full-Surface Ion-Treated Toughened Crystal
Fine Crystal® - Ion Strong®
Ion Strong® is an innovative chemical toughening technology exclusively developed by Toyo-Sasaki Glass which adds approximately 1.5 times※ strength to standard TSG Fine Crystal®. (※in-house lab comparison test)
Until now, finding the perfect way to toughen crystal glassware has been a major issue among glass material engineers. Thanks to TSG’s technological breakthrough, toughened crystal glass is no longer a contradictory phrase.
TSG’s non-lead, alkali-resistant Fine Crystal® material offers world-class brightness and clarity and provided additional strength compared to 24% lead crystal. TSG further leads the world in glass processing technology by commercializing Ion Strong® chemical treatment which offers unprecedented anti-scratch durability.
ION STRONGR MEANS EXCEPTIONAL STRENGTH, ELEGANCE, AND VALUE
Unlike full-surface physical toughening, Ion Strong® will not be subjected to abrupt shattering when breakage occurs.


A brand-new, innovative form of Crystalline
Fine Crystal ®
Fine Crystal® is a new state-of-the-art crystal glass material. Its lead-free composition is environmentally-safe, and it provides excellent alkali-resistance and anti-scratch properties. Fine Crystal® offers the same brightness and clarity that is comparable to traditional 24% lead crystal. TSG has acquired industrial patents in Japan for Fine Crystal®, and has submitted patent applications internationally. With superb strength and elegance, Fine Crystal® provides the next-generation high-grade glassware perfect for quality-conscious consumers and foodservice establishments.
Superior resistance to residential
and commercial dishwashers
TSG’s Fine Crystal® is non-lead and offers superior resistance against alkaline cleaning agents. Our lab test result shows that Fine Crystal® glassware endures at least 4,500 cycles of commercial dishwashing without surface bleaching (clouding out).
Eco-friendliness
Fine Crystal® does not contain lead, that may cause environmental and safety concerns.
Compliance to GMAJ and EU definitions of crystal glass
TSG’s Fine Crystal® meets Manufacturers’ Association of Japan (GMAJ) and EU definitions of Crystal Glass - Crystalline. The acoustic and brightness properties are equivalent to conventional crystal and semi-crystal composition.

Safe Dishwashing Tips
●Chipped and scratched glassware are prone to breakage by physical and thermal shock.
Do not wash these items with dishwashers.
●Do not expose the glassware to thermal shock (i.e. extreme temperature change.)
●After wash, wait until the glassware to return to room temperature before use.
For Commercial Dishwashers
●Always choose the rack with the right size.
For Household Dishwashers
●Do not wash or dry the glassware with high temperature course.
●Load the glassware properly. Refer to the operation manual for correct settings.
