It is oven safe up to 350 degrees.
This 6 Quart Lock and Drain Pasta Pot (#001422441) is oven-safe at temperatures up to 350°F (176°C). Even though the handles and lid are oven-safe, they will get hot in the oven and on the stovetop, particularly gas stoves where an open flame is used. Therefore, please use protective mitts when handling hot cookware. DO NOT USE UNDER AN OVEN BROILER UNIT.
Also be sure to avoid exposing your glass lid to thermal shock. Here is some helpful information regarding thermal shock and tempered glass lids:
UNDERSTANDING TEMPERED GLASS LIDS
Industrial glass is tempered by a controlled thermal treatment process to increase its strength when compared with normal glass.
Tempering creates balanced internal stresses which cause the glass, when broken, to crumble into small granular chunks instead of splintering into jagged shards.
The granular chunks are less likely to cause injury. Under normal usage, and by following the instructions below, tempered glass lids are safer for use within household kitchens.
However, extra caution must be used when handling glass lids.
When cleaning a glass lid, do not use abrasive cleansers, steel wool or coarse scouring pads, as they may scratch the surface of the glass lid, which may cause breakage over time.
Avoid sudden temperature changes such as placing a hot lid on a cold surface or immersing a hot lid in cold water.
Always let the lid cool before washing, as sudden temperature changes can break the glass.
Do not place a cold lid from the refrigerator directly in a heated oven or on a hot pan. Allow the lid to reach room temperature prior to use.
Immediately discontinue the use of a lid that has been damaged during transportation, accidentally dropped or shows signs of damage or scratching.
Continuing to use a damaged tempered glass lid may cause shattering without warning, leading to possible injuries to users or bystanders.
Oven-safe up to 350°F (176°C).
Avoid sudden or severe temperature changes.
Do not immerse hot lid in cold water.
Thermal shock can cause a tempered glass lid to shatter.
Immediately discontinue use of damaged lid.