Hocky27 Posted August 14, 2017 Share Posted August 14, 2017 Hi All, My hygrometer finally arrived so it's time to get it calibrated for the imminent arrival of cigars. Is it completely necessary to use distilled water for the calibration process ? I didn't have any last night so instead I used tap water but this morning I am finding I'm not getting the reading of 75% I should be. Instead it's coming out around 69%. Happy to go and buy a bottle today but just wanted to check. Thanks. Link to comment Share on other sites More sharing options...
PigFish Posted October 2, 2017 Share Posted October 2, 2017 If you are using aqueous salts, yes it is important that the salt is a pure salt and the water is as pure as you can find it... -Piggy Link to comment Share on other sites More sharing options...
BarryNY Posted October 11, 2017 Share Posted October 11, 2017 On 8/14/2017 at 5:51 PM, Hocky27 said: Hi All, My hygrometer finally arrived so it's time to get it calibrated for the imminent arrival of cigars. Is it completely necessary to use distilled water for the calibration process ? I didn't have any last night so instead I used tap water but this morning I am finding I'm not getting the reading of 75% I should be. Instead it's coming out around 69%. Happy to go and buy a bottle today but just wanted to check. Thanks. Best way to calibrate is to get a Boveda pack with a stated RH% close to what you will be looking to keep your cigars at. I keep about four 65%RH packs in a double ziplock bag just for routinely calibrating my hygrometers and wireless sensors. Link to comment Share on other sites More sharing options...
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