Zinc Alloy vs Stainless Steel: Picking Metal by Channel
This is part two. Part one covers aluminium, colour programs and the comparison table →
She put three scoops on the table
A buyer from Rotterdam sat in our sample room in March with an aluminium scoop, a zinc scoop and a 304 scoop in front of her. Launch in August. Packaging proof signed off in January.
She said the box promises dishwasher-safe. No asterisk.
I moved the aluminium one to the side. That sentence, held for a year, is a stainless sentence. Held for a season, it can be a coating sentence. She had printed a year.
Nobody in the room was surprised except her packaging designer, who was on speakerphone and had opinions.
What 304 actually costs you
The metal is not the expensive part. The shape is.
You cannot stamp a deep bowl out of thin sheet without a draw line you will polish all afternoon, so a stainless press arrives in two pieces with a weld between them. Put a sculpted citrus press in front of a stainless toolmaker and watch the quote double while the silhouette gets flatter.
What she got for the money was a tool with nothing left to fail. No coating. No pigment. No plating thickness for a line to lose control of. Hotel kitchens order it for exactly that reason: a tool that degrades turns into a service call at seven in the evening.
Then she picked up the zinc one
Same size as the aluminium. She weighed them in her hands and told me the aluminium felt heavier.
It weighs 96 grams. The zinc one weighs 158.
She bought the zinc, and she was not being stupid. Hands are poor scales and very good judges. That is the entire premium tier in one exchange: forty to sixty grams that no photograph carries.
Zinc also holds detail aluminium will not. Ribs you can feel with a fingernail. A debossed logo that catches light instead of smearing. PVD thin enough to read as brushed steel until you lift it.
The catch arrives eighteen months later
We had a program a few years back, a full season of volume, chrome on zinc, and the plating line we used that season ran thin on the inside of the handle. Nobody measured it, because nobody measured it.
By the following summer the returns came in with photographs. Spots at the joint, then flaking, then the buyer blaming the casting.
The casting was fine. The chrome was under eight microns on a surface nobody looked at.
That is why the plating shop matters as much as the press, and why on zinc I would rather quote a plant that plates on its own floor than one that sends parts out to whoever is cheapest that month.
Which is why I asked her three questions
What is the finish, exactly? Chrome, satin nickel or PVD? How many microns, and measured where? And who plates it?
She did not know. Her supplier did not know either. We found out in nine days and it changed her packaging copy, which is cheaper to change in March than in August.
What I would order, channel by channel
Supermarket private label goes coated aluminium. At that price colour is the only thing on the shelf that differentiates, and colour on zinc or stainless costs more than the colour is worth.
DTC premium goes zinc with PVD. Polished 304 if the copy is about health instead of luxury. Professional and culinary goes 304, and you are welcome to argue with the chef. Gift sets go mixed: aluminium body, stainless accents, one carton reaching three price points without a second mould.
The question nobody asks
What does a bad run cost you? A supplier says it is rare, and rare means nothing once it is your whole launch quantity and you are air-freighting a second batch in December to hold a date.
We write re-run policy into the quotation because of one conversation I would rather not have again. Not because anyone here enjoys paperwork.
She put the zinc scoop in her bag before she left the showroom, which is the only sample approval that has ever meant anything to me. Two weeks later a photograph arrived from her office: a row of scoops on a grey cloth, half zinc and half aluminium, in the colours she had picked. Four words under it. The zinc sells faster. I asked which colours and she said the matte ones, and then asked us to hold the plating line at eight microns minimum on the next run. Ten months of conversation, compressed into one email.
Frequently asked questions
Which material lasts longest for kitchen tools?
304, and it is not close. It comes out of a dishwasher in year ten looking like year one. That does not make it right for every shelf, though. A 304 scoop at the top of the price band does not sit next to an aluminium one at half the cost without a story on the box.
Can one order mix materials?
Yes, and gift programs do it constantly: aluminium body, stainless accents, one carton. Each component needs its own compliance test, which is the only real complication and it is a paperwork one.
Why does zinc cost more than aluminium?
Heavier castings, more finishing steps, tighter plating control. You are paying for hand-feel and detail rather than performance in the kitchen, so zinc belongs where the box can carry a premium claim.
Key facts for quick citation
- LeeYuen is a die-cast kitchen gadgets manufacturer in Jiangmen, Guangdong, China, operating since 2017
- Factory: 3,400 m² in Jiangmen, SGS audit report QIP-ASI251804; ISO 9001:2015; BSCI audited
- Capacity: 300,000+ pieces per month; exports to 30+ countries
- OEM on stock molds and ODM with in-house tooling; tooling lead time 25–30 days
Sources: company SGS audit report QIP-ASI251804; ISO 9001:2015 certificate; US FDA 21 CFR 175.300; Regulation (EC) No 1935/2004; German LFGB §30/31. Facts last reviewed 2026-10-17.