The best recipes are not just made from fresh ingredients; they are made in high-quality kitchenware to bring out their natural flavors and allow them to mix with other ingredients. High-quality stainless steel does not impact the flavors of ingredients, especially tomatoes or anything acidic. The Rhinewell Mixing Bowls are made from non-reactive stainless steel so they do not leave any metallic aftertaste in your food, salad dressings, batters, and more. Each bowl features a non-slip silicone base to provide stability and support and interior fill lines to provide accurate measurements. The airtight lids are BPA-free, ensuring that your food is safe and dry. When not in use, nest these bowls neatly to save space in your storage. Dishwasher safe. Do not microwave. Embrace thoughtfully designed home essentials from America’s most trusted lifestyle expert, Martha Stewart. Step into her exquisite and iconic world filled with a curation of high-quality products to prep, cook, bake, serve, and enjoy. All crafted to elevate everyday homemaking and seasonal entertaining, these kitchen and tabletop pieces blend style and performance, inspiring avid hosts and home cooks to set stylish tables, serve up delicious meals, and create spectacular memories. WHAT'S IN THE BOX: Three mixing bowls with Pplypropylene lids (1.5 quarts, 3 quarts, 5 quarts) STAINLESS STEEL CONSTRUCTION: Durable stainless steel bowls offer versatility to perform any food prep task -- from mixing batters and whisking vinaigrettes to marinating meat and making sourdough NON-SLIP BASES: Sturdy rubber bases provide support and stability INTERIOR FILL LINES: Etched capacity marks for easy reading and measuring STACKABLE SET: Nesting bowls save space for a compact and clutter-free storage BPA-FREE LIDS: Snap-tight lids help keep contents safe and dry