Temperature accuracy with Brod & Taylor folding proofer?
I have been using a plant propagator for my proofing which goes up to 28C fairly accurately, but I decided to buy a Brod & Taylor folding proofer after reading so many good reviews about it. The trouble is, I just can't get the temperature inside the box to match what I've set on the display. Today I decided to check the accuracy by putting a household LCD thermometer and a calibrated Thermapen in there (the household thermometer gets within 1/2 degree of the Thermapen, so is itself fairly accurate).
When I set the proofer to 30C I was only getting a maximum of 25.7C and when I bumped it up to 35C I only got 29.3C - both readings were taken after a good hour of setting the temperature and the lid wasn't removed. I thought the whole point of setting a temperature was that the inside of the box would attain and maintain that temperature, so I'm pretty disappointed that this isn't happening for me, especially as the proofer cost three times as much as the propagator.
Has anyone else tested whether their Brod & Taylor proofer is reaching the set temperatures or are there any tips as to what might be causing the temperature to be a good 5 degrees under what it should be?