# ECOlunchbox Seal Cup Mini, 3oz

> 304 (18/8) stainless steel round container, 3oz, with a leak-proof NSF-tested silicone lid. Part of the Seal Cup line specifically; ECOlunchbox other lines use lower-grade 201 stainless.

- Brand: [ECOlunchbox](https://nontoxicnook.com/brands/ecolunchbox)
- Price tier: $
- Canonical: https://nontoxicnook.com/products/ecolunchbox-seal-cup-mini-3oz

## Why we chose it

The Seal Cup line specifically uses 304 (18/8) stainless steel and an NSF-tested silicone lid rated for liquids. ECOlunchbox other product lines use lower-grade 201 stainless, so the Seal Cup designation matters. At 3oz, it fills the small-batch gap not covered by the LunchBots 4oz press-fit container, and the leak-proof seal makes it practical for pureed foods in addition to solids. B Corp certified brand.

## Certifications

- B Corp
- FDA Food-Grade Silicone
- NSF Tested

## Specs

- material: 304 (18/8) stainless steel body; FDA food-grade silicone lid
- stainless-grade: 304 (18/8)
- capacity: 3oz (78ml)
- leak-proof: yes
- source:materials: https://ecolunchboxes.com/products/seal-cup-mini
- source:bcorp: https://www.bcorporation.net/en-us/find-a-b-corp/company/ecolunchbox/
- source:nsf: https://ecolunchboxes.com/products/seal-cup-mini
- image:source-url: https://ecolunchboxes.com/products/seal-cup-mini
- image:credit: ECOlunchbox, used with permission

## Where to buy

- [Grove](https://www.grove.co/products/seal-cup-mini)
- [Amazon](https://www.amazon.com/dp/B00E7OF316)

Prices are deliberately omitted from this mirror — they go stale. Current prices and stock: https://nontoxicnook.com/products/ecolunchbox-seal-cup-mini-3oz

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Nontoxic Nook lists only products that cleared the published criteria at https://nontoxicnook.com/our-promise. Affiliate disclosure: https://nontoxicnook.com/affiliate-disclosure.