
Pending an NDA (non disclosure aggrement) with yyy.. can’t say more right now 😉

We have thought about building an electronic spunding valve for a while. We have measured pressure accurately and logged it to a db for a long time now but used a manual spunding valve. When planing for a brew we realized that the spunding would fall during a vacation out of town and that triggered…

The differential pressure based volume sensor is kind of tricky to use and have a lot of “moving parts” so we designed a volume sensor based on the fermenter weight instead. The scale is a standard bathroom scale capable of 180 kg that is stripped of all electronics except for the 4 pressure sensors that…

Knowing the “exact” wort volume in a fermenter is “crucial” for quality control during the brewing process. However, measuring the volume accurately and continuously can be a challenge. At our brewery, we use differential pressure sensors for various measurement tasks, and we realized that this technology could also be used to estimate the wort volume…

When we invested in a Brewtools F80 fermenter we needed a glycol chiller for it. As usual we decided to make one instead of buying one. The nice thing is that we have total control over the system and we could crank the BTU/h up to 8000 without breaking the bank. Stripping the AC down…

Everything we do is connected 🙂 The pressure sensor of the fermenter is no exception. We used the same typ of sensor as for the Venturi pipe and suction sensor but with a greater range (6 bar) and not differential.It is read from the fermenter controller, i.e., the RPi controlling the glycol chiller and other…

Due to the physical properties of liquids, especially water, there is a great gradient in temperature of the liquid in a partially cooled vessel that is not agitated. This can be seen if you drill a hole in the ice of a lake, you will (probably) find liquid water under the ice. Density of (liquid)…