Lead consumption is proven to be toxic to humans, but some organizations used it to manufacture paint and lead crystal drinkware in the past. Lead crystal glasses are not safe to use for drinking.
The Way to Use Leaded Crystal Safely
Measuring the amount of lead (Pb) consumed when drinking from lead crystal glassware. Is it safe?
Is lead crystal safe to use?
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TABLE 12 Beverage Glasses offers a set of 6 that meets virtually all your beverage needs and enjoyment. Whether enjoying cold, refreshing sodas in the
16.5 oz. Lead-Free Crystal Beverage Glasses (Set of 6)
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Irena Poland Lead Crystal - Drink Set 7 Pieces - 2700010244
Vintage Princess House Clear Glass Mug: Lead-Free! (UPDATE: Princess House also sold *Leaded* items - so be careful!)
Is It Safe To Drink From Lead Crystal?