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Klean Kanteen Rise Food Box, 23 oz

Reader ratings
Klean Kanteen Rise Food Box, 23 oz

A 23 oz stainless steel lunch box with a silicone lid and a lifetime warranty. The colored outside is powder coated and the divider may be plastic. All safety claims are the maker's own; we found no contaminant test.

Best for Carrying lunch or packing leftovers in steel and silicone instead of plastic, without needing to microwave it in the box.

Our rating
Fair (3.4 of 5)
Price range
Mid-range
Size
23 oz (680 mL), 5.87 x 5.75 x 1.97 in, 8 oz
Made in
Designed in Chico, California and made in China, according to the maker's FAQ

approx. $27

See it on Klean Kanteen’s site → (opens in a new tab)

We are not affiliated with Klean Kanteen. This link goes to the maker’s own page, with no tracking code. How we're funded.

Also sold at Amazon ($27), Walmart ($27) .

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    Reviews are personal experiences, not research, and they never change our quality ratings. Every review is read by our team before it appears.

    How we evaluated it

    How it scores Our rating, metric by metric Fair, 3.4 of 5
    1. What touches the food 45% of the rating 4 of 5

      Food touches 18/8 steel and a food-grade silicone lid. The colored outside is powder coated, and the divider (if used) may be plastic.

    2. Independent testing 15% of the rating 2 of 5

      Only the maker's word on BPA and lead, plus a paid Intertek check of recycled content. We found no contaminant test.

    3. Durability 15% of the rating 3 of 5

      Lifetime limited warranty against defects, but no replacement lid or divider is sold for this box.

    4. Trust 10% of the rating 4 of 5

      Certified B Corp, names its materials and country of manufacture, and has one 2010 recall of a different part (bottle spouts).

    5. Value 15% of the rating 3 of 5

      $26.95 for 23 oz is about $1.17 an ounce, more than glass but fair for a steel lunch box with a lid.

    The rating, 3.4 of 5, is the weighted average of these scores. See how we rank food storage & kitchen and our standard.

    Where to buy Stores and the prices we saw 2 stores
    • Amazon (opens in a new tab) approx. $27. The 23 oz in Sea Spray at $26.95 (Tofu is B0CQRWRXHQ, also $26.95). Sold by Pattern Professional, a third-party seller, and shipped by Amazon; opened 2026-10-23. Still $26.95 and in stock on 2026-11-03.
    • Walmart (opens in a new tab) approx. $27. The 23 oz in Sea Spray at $26.95, with the same UPC as that color on Klean Kanteen’s page. Sold by Pattern, a third-party seller, not by Klean Kanteen or Walmart, and fulfilled by Walmart. Opened 2026-11-03.

    Prices as we saw them on October 23, 2026. They change often. These links carry no tracking code and earn us nothing.

    What it’s made of What touches your food, water, skin or air 4 materials
    1. 18/8 stainless steel body, 90% post-consumer recycled content (maker's claim)
    2. Klean Coat powder-coat finish on the colored outside; the maker's tags list an all-stainless interior
    3. Food-grade silicone lid (type and colorant not stated)
    4. Divider, if you use one: material not stated. The maker says the box is plastic free only without it
    What people ask Worries raised online and elsewhere, and what we found 4 questions
    Is any of it plastic? The maker's FAQ says the box is plastic free only without the divider.
    The page does not say what the divider is made of or whether the 23 oz box comes with one. Without a divider the box is steel, a silicone lid and a coated outside. Klean Kanteen's product page (opens in a new tab) is the only source.
    What is the Klean Coat finish, and is it where the food is?
    The FAQ (opens in a new tab) calls it a clean powder coat on colored and printed products, with ingredients screened using GreenScreen. The product tags list an all-stainless interior. We found no test of the coating.
    Can you really microwave a steel box?
    The maker allows the steel vessel only (no lid, no divider), up to 1,000 W for 5 minutes, one box at a time and clear of the oven walls. A buyer on the product page says every microwave they own is 1,100 W or more, so check your oven's label first.
    Made in China, so is the lead-free claim tested?
    The maker's FAQ (opens in a new tab) says its products are designed in California and made in China, and calls all of them lead-free. No lab report is published. CPSC shows one Klean Kanteen recall, in 2010, for a plastic bottle spout, and no Prop 65 notice names the company.
    Why we chose it What put it on our list 3 points
    • Food touches steel and silicone. The body is 18/8 stainless steel with 90% post-consumer recycled content, per the maker, and the lid is food-grade silicone.
    • Use limits are written down: dishwasher and freezer safe, oven reheating of the steel vessel only to 350°F (177°C) for 20 minutes with the lid off, and a stated microwave limit.
    • Klean Kanteen backs it with a lifetime limited warranty against manufacturing defects, a Certified B Corp mark and a long record: the only CPSC recall we found is from 2010 and concerns a bottle spout.
    Trade-offs What to weigh before you buy 4 points
    • No independent test of the box is published. The BPA, BPS, BPF and lead claims are the maker's, and the Intertek entry covers recycled content only.
    • The divider may be plastic. The maker says the box is plastic free only without it, and does not name the material.
    • The colored outside is powder coated (Klean Coat). The maker says the inside is bare steel but publishes no test of the coating.
    • No replacement lid or divider is sold for this size, and the microwave limit of 1,000 W is below many home ovens.
    What to know Details worth knowing first

    A lunch box is where plastic is hardest to avoid, because it is filled hot, packed in a bag and washed often. This one is stainless steel with a silicone lid, the swap our guide to reducing microplastics recommends. Our guide to plastic food containers explains why heat is what matters most, and why BPA-free is not safe as a label.

    What holds the rating back is evidence. Klean Kanteen says the box is free of BPA, BPS, BPF and lead and that its steel is 90 percent recycled. The Intertek check it links covers recycled content, not contaminants, and we found no test of the box itself. The maker's FAQ also says the box is plastic free only without its divider, a part it does not describe.

    Treat the microwave rating with care: steel vessel only, up to 1,000 W for 5 minutes, one box at a time. Many home microwaves are stronger, so most people will reheat on a plate. No replacement lid is sold for this size, which is the weak point in an otherwise long-lived design.

    What we checked Each claim, and how sure we are of it 8 checks
    How Klean Kanteen Rise Food Box, 23 oz measures up against our food storage & kitchen criteria
    What we checked What we found
    Glass or steel where food touches Maker’s claim 18/8 stainless steel body, 90% post-consumer recycled according to the maker. The colored outside has a powder coat; the maker's tags list an all-stainless interior.
    Lids and seals you can name Maker’s claim A leakproof, food-grade silicone lid. The silicone grade and colorant are not stated, and the divider's material is not stated.
    Written heat limits Maker’s claim Dishwasher and freezer safe. Microwave: steel vessel only, up to 1,000 W for 5 minutes, one box at a time. Oven: vessel only, up to 350°F (177°C) for 20 minutes, lid off.
    Replaceable parts Not verified We found no replacement lid or divider for the 23 oz box in Klean Kanteen's US catalog (checked 2026-10-23). The warranty covers manufacturing defects for the original purchaser.
    BPA, BPS, BPF and lead Maker’s claim "BPA-, BPS-, BPF- and lead-free", stated by the maker. No lab report.
    Recycled-content verification Maker’s claim Klean Kanteen says Intertek, a third-party verifier, certified the 90% post-consumer recycled steel, and links a directory entry that loads with JavaScript and showed us nothing. Even if it is real, it checks recycled content, not lead or nickel, and the maker pays for it.
    Company certification Maker’s claim The site shows Certified B Corp. B Lab's directory refused our request (403), so we could not check it. B Corp certifies the company, not this product.
    Recalls and notices Verified CPSC lists one Klean Kanteen recall, from 2010, for the plastic spout of the Sport Cap 2.0 water bottle (choking hazard), and none for food boxes. No Prop 65 notice names Klean Kanteen (searched 2026-10-23).
    What the labels mean
    • Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
    • Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
    • Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.
    Sources Where our facts come from 7 sources
    1. Klean Kanteen 23 oz Rise Food Box product page. Maker’s page. Price, materials, microwave, oven and dishwasher limits, warranty and the divider statement, read 2026-10-23. Open ↗ (opens in a new tab)
    2. Klean Kanteen FAQ. Maker’s page. Source for made in China, Klean Coat and the testing statements. Open ↗ (opens in a new tab)
    3. Klean Kanteen AB1200 page. Maker’s page. Steel composition (type 304 specification) and the recycled-steel statement. Open ↗ (opens in a new tab)
    4. Klean Kanteen lifetime limited warranty. Maker’s page. Open ↗ (opens in a new tab)
    5. Intertek sustainability directory entry linked from Klean Kanteen's FAQ. Independent source. A JavaScript page that showed no content to us. Open ↗ (opens in a new tab)
    6. CPSC recall search for Klean Kanteen, run 2026-10-23. Certifier or regulator listing. One result: a 2010 recall of Sport Cap 2.0 bottle spouts. Open ↗ (opens in a new tab)
    7. California Attorney General: Prop 65 60-day notice search. Certifier or regulator listing. Searched by alleged violator on 2026-10-23; nothing named Klean Kanteen (the hits were Klean Athlete and Kleancolor, different companies). Open ↗ (opens in a new tab)
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