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A backyard at dusk in fall with a steam tent on a covered porch, a silver cold plunge tub, steps with handrails and a robe on a hook
Cold Plunge DOGITY

DOGITY Extra Large Ice Block Molds 4 Pack 32LB for Cold Plunge Tub

Four silicone molds that turn tap water into 8 lb blocks for the cold tub.

Best for chilling a cold plunge without a chilleroccasional plungestopping up cool hose water in fall

Without a chiller, ice is how a cold tub gets cold, and a few big blocks do the job with less fuss than bags of cubes. These four silicone molds each make a block of about 8 lb (3.6 kg) – roughly a gallon of water – for 32 lb (14.5 kg) of ice per freeze. The maker gives 12 to 24 hours in the freezer.

The listing’s dimension field is clearly wrong and no lids are shown, so two things are worth checking before you rely on them: that four molds fit your freezer, and that they sit level while they freeze. The brand is not a well-known one.

Tip: Fill the molds the evening before and refill them as soon as the blocks go into the tub – then the next plunge is always one freeze away.

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