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Medicine Cold Storage

Apr 1, 2026

I use medicine that requires refrigeration and I decided to check the actual temperature of the box of medicine with a small data logger

A graph showing fluctuating temps from many variables

I found that after christmas dinner was made and put away, the temperatures went near and then slightly above range, then near below range (the real risk in my opinion - freezing)

I tried a cheap thermo-electric cooler or Peltier device and it didn’t have enough cooling power

A graph showing a stable, smooth graph at a minimum 47F, above range

So now I’ve switched to a dedicated compressor-driven mini fridge. It just stays in range and the only thing it’s cooling is the medicine and bottles of water (to stabilize the temperature)

A graph showing a stable, oscillating graph of 2 probes in a range