Common materials include porcelain/ceramic, stoneware, glass, and recycled PET plastic. Some plastic sets also use silicone or polypropylene for lids and bases.
Capacities run from small dip bowls at about 3–4 ounces to large serving or pasta bowls around 27–42 ounces. Mixing-bowl sets list quart capacities from roughly 0.4 QT up to 7 QT.
Yes—several plastic mixing sets include nesting bowls with tight‑fitting lids. Listings commonly show configurations like 6-bowl sets with 6 lids or 3-bowl sets with 3 lids for compact stacking and storage.
Common features include nesting designs for compact storage and nonslip silicone bases that help keep bowls steady while mixing.
The plastic mixing bowls are described as made from recycled PET, with stated post‑consumer recycled content ranging from about 60–62% up to 80% recycled PET in different listings.
Reviewers commonly describe the bowls as sturdy, substantial, break‑resistant, or heavy‑duty. Some glass bowls are specifically noted for extra‑strong, triple‑layer construction.