I'm using metal racks with sous-vide cooking to help keep the packets separate, and they're rusting on me. The racks are mostly chrome plated (or maybe nickle). Is there a waterproof paint or coating that I could apply to a non-rusted rack that would protect it? It would have to be a food safe coating (ie I could eat food if I were to cook on it directly), ideally oven safe, and preferably durable enough to scrub. Does something like that exist?

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    What's special about the racks that you couldn't replace them with something made of stainless steel? This would be a permanent solution unlike trying to coat plated steel, and would probably be cheaper in the long run
    – Chris H
    Nov 27, 2016 at 8:56
  • That is acceptable, it's just that I frequently see items labeled as "stainless" get reviews that talk about rusting.
    – Sean Lake
    Nov 27, 2016 at 22:50
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    Reviews talking of stainless knives or stainless pots, racks, trays rusting? The stainless steel used for knives is a very different alloy and for more prone to rusting. Besides that: brine, acids and galvanic corrosion (dissimilar metals + electrolyte) get the better of many supposedly stainless metals. Nov 28, 2016 at 11:35

1 Answer 1


If you need to use metal racks, the solution is to acquire stainless steel racks...food safe, oven safe, washable....you probably just need 1/4 sheet pan racks, like this.

  • I believe the type of racks OP is referring to is similar to this one amazon.com/LIPAVI-Float-preventer-Stainless-L10X/dp/B07NZV5R8H I got a similar one so I don't need to worry about bags clumping together or water getting in the ziplocks. The one in the link says "marine 316 steel" so no rust?
    – Luciano
    Mar 21 at 9:46
  • @Luciano could be as those came standard with one of the earlier versions of home sous vide (sous vide supreme, I believe). Almost anything will work, the idea is just to create space for circulation while helping keep the bag submerged. I happen to use the racks I linked to because they can serve more than one purpose in my kitchen.
    – moscafj
    Mar 21 at 15:00
  • indeed the one you suggest are more versatile, but for sous-vide they might be too big to fit in a home cooking container. Also (at least where I live) I can't find those for cheap
    – Luciano
    Mar 21 at 15:16
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    @Luciano, ahh, I see. I linked the 1/2 size. I meant to link the 1/4 size. That is now corrected. Still might not work for everyone, but easier to fit into smaller containers.
    – moscafj
    Mar 21 at 15:23

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