This cup is part of set sold by Caveman Cups. It was purchased new in 2022 from Amazon. It is made of 304 stainless steel and the 8 oz size is perfect for young children. The edges have a tapered, smooth lip and there are no sharp surfaces. There is an etched logo on the base.
The cups are billed as indestructible and I believe them. They’ve been thrown, tossed, soaked in water, and they have never developed rust or discoloration. Unfortunately their business only appears to stock these occasionally, so if you see them for sale, grab them!
How do you think our favorite stainless cup ranked using XRF?
Reading on the Base with Logo:
| Element of Interest | Parts per million (ppm) | Error Range |
|---|---|---|
| None detected | ||
| Other Elements | ||
| Chromium (Cr) | 183,468 | +/- 672 |
| Nickel (Ni) | 80,963 | +/- 697 |
| Copper (Cu) | 265 | +/- 94 |
| Manganese (Mn) | 11,615 | +/- 486 |
| Iron (Fe) | 719,186 | +/- 1,072 |
| Vanadium (V) | 1,509 | +/- 174 |
| Cobalt (Co) | 2,919 | +/- 549 |
The sample was tested in consumer goods TestAll mode using a Niton XL3t 700S for at least 30 seconds. Results are rounded to the nearest whole number.
Testing Summary:
Well, if you know our blog you know we are fans of stainless steel for cooking and serving. We favor stainless over plastic since plastic can leach chemicals into food through heat or prolonged contact.
The item is non-detect for lead and other elements of interest via XRF. It tested below the federal lead restrictions for children’s products which limits products intended for use by children 12 and under to 90-100 parts per million lead.
The item is marketed to kids and is subject to these regulations.
We think this is a great product for children by a reputable company. We’ve seen a lot of stainless steel cups and plates sold on Amazon by random international brands and when possible we stick with brands based in the U.S. or Europe (whether manufactured here or abroad) to ensure we are buying products that are accurately described.
We Prefer:
We like similar stainless steel cups for camping or children when they are too young to use breakable, glass cups like those by Anchor Hocking. We have tested similar stainless cups by Wealers and found them to be slightly more prone to develop small spots and residue on the inside. We haven’t had the same issue with these 304 stainless steel Caveman Cups.
We recommend avoiding vintage ceramic or painted cups, or older plastic cups, which can contain high levels of lead or BPA. When glass is not an option, we sometimes use new acrylic or polypropylene cups for cold liquids in a pinch.
When possible, we recommend that all items used by children in the kitchen be lead free, with the exception of trace lead in products that are leach tested, preferably under 90 ppm lead on surface coatings, which is considered to be within legal safety limits for children’ s products.
Better Cups:
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Premium Heavy Stainless Steel Cups for Kids & Toddlers. Safe Rimless 8oz 4Pack
Why we like it: This stainless steel kid’s cup we tested above in this set is a great choice and feels heavier and has a smoother top rim than the cup by Wealers.
Why we like it: Wealers makes a decent stainless steel cup that is our go-to when the caveman cups are unavailable.
Why we like it: More stainless options by Wealers – these are a great choice.
Disclaimer: These items have not always been personally tested by us but are likely to be lead free or low lead and/or cadmium based on our research into the materials, discussions with manufacturers, and/or testing on similar products. We recommend items we would use ourselves.
We provide our XRF testing for general educational or informational purposes only to help consumers identify low lead and lead-free products. We hereby disclaim any and all warranties, expressed or implied, and assume no duty or responsibility with respect to how any person or entity chooses to use the information on this website.