Seal Cup Trio
Seal Cup Trio
Seal Cup Trio
Seal Cup Trio
Seal Cup Trio
Seal Cup Trio
Seal Cup Trio
Seal Cup Trio

Seal Cup Trio

$34.00 Sale Save

Only 4 left in stock

Alternative to plastic food containers.

Plastic-free and leak-proof, the Seal Cup™ Trio is a three-piece lunch container set ideal for packing a variety of foods and keeping them separate.

The steel-and-silicone lunch and snack containers are nesting, so you can pack up to a total of 5 cups of food in the morning and after you've eaten tote them home compactly by nesting each container inside the other. How cool is that?

Product Dimensions:

  • Large container measures 4 3/4 inches diameter by 2 1/4 inches tall. Capacity is 20 oz. (2.5 cups). Tare weight is 4.4 oz.
  • Medium container measures 4 1/8 inches diameter by 2 1/8 inches tall. Capacity is 12 oz. (1.5 cups). Tare weight is 3.1 oz.
  • Small container, measures 3 1/2 inches diameter by 1 7/8 inches tall. Capacity is 7 oz. Tare weight is 2.1 oz.

 Product Details:

  • Total set capacity 40 oz. (5 cups)
  • Total set weight 9.6 oz.
  • Tare weights are etched on the bottom of each container so they may be used at food bars and delis that charge by food weight

Similar Option:

Goes Great With:


Non-toxic silicone lid and type 304 stainless containers, free of estrogen-mimicking chemicals commonly found in plastics like BPA, BPS, and phthalates. Steel and silicone container is lighter than glass containers and nonbreakable. The silicone is non-stick, flexible and easy to clean, and doesn't dry out and crack with use! 


Recyclable paper.

Care Instructions

  • All parts are dishwasher and oven-safe up to 400 degrees Fahrenheit (204 degrees Celcius).
  • Not for use in the microwave. 
  • The silicone lids are also freezer safe, but beware because it's risky to freeze in our steel containers. Liquids swell when frozen and if the steel container is overfilled the freezing will split the steel.
  • Bleach will stain and damage stainless steel, do not use cleaning sprays or solutions that contain bleach.
  • Never use steel wool or steel brushes. They will scratch the surface of your stainless steel and make it more susceptible to rusting and staining.
  • Abrasive cleaners will scratch the surface and should always be avoided.
  • Dirty water and cleaning solutions can leave a residue that can stain and damage the surface, so don’t forget to rinse and dry.
  • Long-term exposure to table salt and salt and vinegar mixes can damage stainless steel. 
  • In order to reduce chance of staining, do not allow the following acidic food items to remain on stainless steel surfaces for hours: ketchup, mustard, mayonnaise, lemon juice, vinegar, salt, and salad dressing. 

End of Life Instructions

Silicone is recyclable, but typically not accepted in curbside recycling. Check to see if you have a local facility that recycles silicone. Otherwise, you can actually burn it. Burning silicone is non-toxic and only releases a small amount of carbon dioxide. Stainless steel is recyclable.

Where It Comes From

ECOlunchbox specializes in plastic-free food containers designed to help people reduce their dependence on plastics for health and environmental reasons. They are a woman-owned, mission-based family business based in California, USA. Made responsibly in China.