Where to place the temp probe in my fermentation fridge

David Woods · 2024-12-22T17:44:31+0000

I use a fridge with an Inkbird controller in my fermentation fridge and up to now I have the probe placed against the fermenter held in place with bubble wrap.

I have noticed that there are big temp changes given that the probe is measuring the outside of the vessel and it seems doesn't really react in a very smooth way enough.

I was wondering if it would be better to have the probe measuring the ambient temp of the fridge instead as maybe this would result in smaller adjustments in the temp - hopefully giving a more stable and consistent reading.

What do you prefer - it does seem that the wort needs to cool down or heat up a lot to affect an Inkbird change and then the reading seem a bit extreme.

I would be very interested in what would give the best results. I use a Tilt and it does show some wild swings in temp.

Cheers

RichardM · 2024-12-22T18:51:04+0000

The usual advice is to do what you are doing.
An alternative would be a thermowell so you are measuring the temperature nearer the centre of the fermenter.

I don't see large temperature swings with the probe taped to the fermenter with bubble wrap over it. What are using for heating?

fury_tea · 2024-12-22T18:53:29+0000

I measure the outside of the fermenter, same as you, you can get thermowells that measure the temp of the liquid a bit more accurately but honestly I don't think you really need them, I have one and I never use it.

You shouldn't be getting temp swings though, you might need a bit more insulation on there. Ambient temp.will swing more wildly and not be anywhere near as accurate.

MashBag · 2024-12-22T19:04:16+0000

You can get temp swings, if the heating or cooling is creating a lag.

Ie heater too big. Cooling to much. So the probe detects the temp correctly (if positioned right) but the juggernaut is still rolling.