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Digital thermostats work on electrical resistance which is more accurate than bimetallic thermostats. Also bimetallic thermostats basically only switch at one t
by bbxiao1 13y ago
Digital thermostats work on electrical resistance which is more accurate than bimetallic thermostats. Also bimetallic thermostats basically only switch at one temperature whereas most digital thermostats can handle a range. If you intend on using a kettle for both coffee and tea, that range is desired since the ideal temperatures between coffee and tea is quite significant.
- barrkel 13y agoPop-disc bimetallic thermostats switch at only one temperature, but the property of bimetallic expansion is in no way limited to switching at a single cutoff point. Here's a bimetallic adjustable thermostat: http://catalog.selcoproducts.com/item/adjustable-controls/adjustable-thermostats-tl-and-tor-series/pn-5213?&bc=0|1248 http://catalog.selcoproducts.com/item/adjustable-controls/ad... I'd be willing to make a large bet that a majority of people who brew both coffee and tea do so using boiling water or close to it. Black tea (breakfast tea) is best made with freshly boiled water, while I find coffee made with anything below 90C to be too weak - I generally use water made shortly off the boil when I'm using an Aeropress. I have zero doubt digital thermostats are more accurate. That wasn't the point.
- fnordfnordfnord 13y agoThermocouple, RTD, Bi-metallic strip/coil, Silicon Bandgap, Thermistor, and I'm sure there are a few common types that have slipped my mind. Your statements are a gross over-simplification.