Zojirushi Micom Water Boiler & Warmer (CD-WCC)
A popular hot-water dispenser whose stainless reservoir is coated in PTFE nonstick, with a plastic water-level gauge - and keep-warm mode holds hot water against both for hours.
The verdict: Minimal plastic contact
These tabletop boilers are excellent at holding hot water, but the water-contact surface is the problem: the "nonstick coated stainless steel interior" is a PTFE (polytetrafluoroethylene) fluoropolymer coating over the steel, confirmed by Zojirushi's own material FAQ. Zojirushi markets it as PFOA-free, which is true but does not mean PTFE-free - PFOA is a legacy processing aid; PTFE is the coating itself, and it is still there. Worse than a kettle, keep-warm mode holds near-boiling water against that coating (and the plastic sight-glass gauge) for hours or days, maximizing contact time. The lid is stainless with a rubber seal; the outer lid and dispense parts are plastic.
Verification: Manufacturer confirmed
What it's made of
| Part | Material | Food contact |
|---|---|---|
| interior reservoir surface PTFE nonstick coating over stainless steel (Zojirushi confirms the coating is PTFE, PFOA-free) | PTFE / Teflon nonstick fluoropolymer | Yes primary 🔥 |
| water-level gauge translucent sight tube that fills with water to show level; exact resin not published | Plastic other / unspecified | Yes primary 🔥 |
| inner lid seal sold as a spare "inner lid rubber seal"; steam/water-path gasket | Natural Rubber / Latex | Yes seal 🔥 |
| outer lid / dispense path outer lid housing and pump/dispense components; some sit in the dispensed-water path | Polypropylene PP, #5 | No |
The CD-WCC series (e.g. CD-WCC30 at 3.0 L, CD-WCC40 at 4.0 L) are Micom tabletop water boilers and warmers: they boil, then hold water at set temperatures (e.g. 175/195/208 degrees F) for on-demand dispensing via an electric pump. They are built for keeping a large volume of hot water ready for hours, not for a quick single boil.
Pros
- Excellent temperature holding and large 3-4 L capacity
- Convenient one-touch dispensing for tea, coffee, and instant foods
- Well-built and reliable for its intended use
Cons
- Water-contact interior is a PTFE (Teflon-type) nonstick coating, not bare steel
- Keep-warm mode holds hot water against the coating and plastic gauge for hours to days
- Plastic water-level sight gauge is in the water path
- The PFOA-free marketing claim does not mean PTFE-free
Notes
- If you want this exact form factor with a bare uncoated stainless interior, Zojirushi's CD-WHC40 is explicitly listed free of PFAS (including PTFE) on water-contact areas - though it still has a plastic level gauge and outer lid
- Representative models: CD-WCC30 (3.0 L), CD-WCC40 (4.0 L)
Categories: Electric Kettles
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.zojirushi.com/blog/design-explained-our-slicksteel-interiors-and-nonstick-coatings/ Zojirushi blog stating the nonstick coating is PTFE (applied primer + topcoat) and PFOA-free
- manufacturer https://www.zojirushi.com/app/product/cdwcc official CD-WCC spec - "nonstick coated stainless steel interior," "wide-window water level gauge," made in China
- manufacturer https://www.zojirushi.com/app/product/cdwhc CD-WHC40 uncoated model - interior "not-coated," water-contact areas "free of PFAS (including PTFE and PFOA)" - the contrast confirming standard CD-WCC models contain PTFE
Spot a mistake or something out of date? Let us know — corrections are how this stays accurate.