Thermostatic "coffee beans" give you unexpected results
Last updated 2026-09-29 — This bean-shaped stainless steel capsule contains an insulating agent called PCM, which can effectively adjust the temperature of hot coffee to maintain the taste of coffee. PCM(Phase Change Material) is used to keep the liquid constant temperature by absorbing and releasing heat when dissolving and solidifying at about 60℃. It is very smart. Source: China Digital Science Museum
This stainless steel gadget in the shape of coffee beans is sealed with a thermostat called PCM, which can effectively adjust the temperature of the hot coffee and maintain the mellow taste of the coffee. It is very smart to use the heat absorbed and released by PCM (Phase Change Material) when dissolving and solidifying at about 60 ℃ to keep the liquid at a constant temperature.
Source: China Digital Science and Technology Museum
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