Tupperware UltraPro goes in the oven.

From my own experience, the Tupperware UltraPro cookware is an excellent choice for oven cooking, provided you stay within the recommended temperature limits. It can safely go into the oven up to about 230°C (446°F), which is suitable for baking casseroles, roasting vegetables, or even making desserts like cobblers. What I particularly appreciate is the durability of the material—unlike traditional glass bakeware, UltraPro is lightweight yet sturdy, making it easier to handle. When using the UltraPro in the oven, I always ensure the cookware is heated gradually by placing it in a cold oven and then turning it on; this prevents thermal shock and potential cracking. Also, avoid sudden temperature changes like moving it from the freezer directly to a hot oven. After cooking, let it cool down before washing to maintain its longevity. Cleaning the UltraPro is straightforward. I usually wash it with warm soapy water and avoid abrasive scrubbers to keep the surface scratch-free. If any food residues are tough to clean, soaking it for a few minutes does the trick. In summary, the Tupperware UltraPro is a versatile oven-safe container that I recommend for both novice and experienced home cooks. Its ability to withstand oven heat combined with its ease of cleaning and handling makes it a fantastic addition to the kitchen.