5 Best Plastic-Free Food Storage Containers in 2026

The Ziruma set is described as plastic and BPA free, with a glass body and a glass lid, and the listing stresses airtight lids that keep contaminants out. The 35 oz size equals 4.4 cups, which is large enough for a portioned dinner or a batch of soup without feeling oversized in a fridge shelf. Because the lid is glass as well, there is no rigid plastic part touching the food at any point in the system.

The tradeoff is weight and fragility, which is true of every glass set but matters more with a generous 35 oz volume. A full container of stew is noticeably heavy to carry, so this is a home-fridge and meal-prep choice more than a commute lunch choice. The listing family also includes a 21 oz version and a multi-size version, so buyers who want smaller portions should open the right variant instead of assuming the large size fits every need.

In ownership terms, the straight glass lid is easy to wash and has fewer crevices than a gasketed snap lid, but check the product page for how the airtight seal is formed and whether the lid is rated for the microwave or dishwasher. Compared with the Urban Green round set, which uses a silicone-framed vented lid, the Ziruma lid is a simpler glass-only design. Against the VERDESSA set at 27 oz, the Ziruma gives you roughly 8 oz more room per container. If you want the most capacity per piece in this lineup, this is the one to start with.

Everusely takes a different route from glass: premium-grade stainless steel with food-grade silicone, with no plastic named in the materials. The set covers five sizes from 3 oz up to 32 oz (about 100 ml to 950 ml), which is the widest size spread among our picks. That range lets one set handle sauces, snacks, sides and a main dish in the same lunch bag.

The obvious limitation is that steel is opaque, so you cannot see leftovers without opening the lid, and it is not a microwave container. Anyone who reheats at a desk will need to move food to a plate first, and the listing does not make claims about oven or dishwasher use, so confirm on the product page. The steel body, however, will not crack when dropped in a bag or shatter in a sink the way glass can.

Day to day, this is the lightest option to carry in the lineup compared with a glass container of the same volume, and the 32 oz piece is about the same size as the VERDESSA 27 oz glass base. The tiny 3 oz and 6 oz pieces have no equivalent in the Ziruma or Urban Green sets, which stick to larger meal-prep volumes. If your goal is packed lunches or school and work bags, this is the best match here, while a home fridge full of reheated leftovers is better served by glass.

Urban Green builds the lid from semi-tempered glass framed in silicone, and the listing says the lid contains only glass and premium silicone with no plastic. The round version has a leak-proof lid with an air vent, so steam can escape when you heat food. The listing says it is microwave safe with the lid on, as long as the vent is left open.

That vent instruction matters. A sealed lid in a microwave builds pressure, and the maker explicitly tells owners to open the vent, which is a small habit to form but an easy one to forget. Semi-tempered glass is also not the same as borosilicate, so rapid temperature swings deserve more caution than the listing language implies; check the product page for oven guidance.

Round containers waste a bit of rectangular fridge space but are easier to clean in the corners and to stir in the microwave. Compared with the Urban Green rectangle set, the round design trades stacking efficiency for easier cleaning and more even reheating of soups and grains. Against the Ziruma set, the vent gives it a clear edge for microwave reheating with the lid in place. Anyone reheating most meals will appreciate the vented lid more than the extra capacity of larger sets.

This is the rectangular sibling of the round Urban Green set, sold as a 3-pack with the same silicone-framed glass lid. The listing repeats the main claims: every piece is plastic free, the lid has an air vent, and it is microwave safe with the lid on as long as the vent stays open. Rectangles stack and nest neatly, so three of them take up less fridge or cabinet space than three rounds of the same volume.

Three containers is a smaller commitment than a four-piece set, which suits one or two people who prep a few meals at a time but may leave you short for a full week of lunches. Capacity per piece is not stated in the part of the listing we reviewed, so open the product page before ordering if your portions are large. As with the round set, the maker recommends leaving the vent open while heating.

In use, a rectangular container fits sandwiches, fish fillets and flat grains better than a round one, and it slides into a lunch bag more easily. Compared with the Urban Green round set, you gain stacking efficiency but lose some ease of stirring in the corners. Against VERDESSA, the Urban Green lids close with a silicone frame and vent while the VERDESSA bamboo lid is non-locking, so this is the better match for carrying food without spills.

VERDESSA pairs a high-borosilicate glass base with a lid that has a glass center and a natural bamboo frame. The listing says the base is oven safe up to 450°F and also microwave safe, which makes it the most oven-friendly container in this plastic-free group. Borosilicate handles temperature changes better than ordinary glass, so it is the one to pick if you want to bake or roast and then store in the same dish.

The lid is where the tradeoffs live. It is a non-locking, secure-fitting design rather than an airtight snap lid, so we would not trust it for carrying soup in a bag. The listing also says to hand wash the lid only, while the glass base is dishwasher safe, so cleaning is a two-step routine.

The 27 oz size sits between the Ziruma 35 oz and the smaller Everusely pieces, which fits a single serving of casserole or a pasta bake. Compared with Urban Green, the VERDESSA lid is nicer on a counter but less spill-proof, and the lid cannot go in the dishwasher. If you cook in the oven often and mostly store in the fridge, this is the better choice, while commuters should lean toward Urban Green or Everusely.