Cleaning glassware consists of boiling the glass at very high temperatures (thermoforming oven + 500°C) in order to calcine all impurities taken from the glassware.
Procedure for cleaning glassware with online order:
1. Buy glassware cleaning online.
2. Return the packaged glassware to us (we are not responsible for breakage during transport).
3. Enter your order number outside the return box (you will have this number on the order form you will receive prior to delivery).
4. We will return your cleaned glassware with the rest of your order.