01
Gravity and concentration
Choose among direct density, small-sample refraction and continuous trend monitoring without confusing resolution with accuracy.
Choose a measurement method →The evidence-led workbench
Choose the job.
Then choose the instrument.
Use manufacturer specifications, a repeatable bench check and the measurements your process actually needs. BrewMyBeer has not physically tested the named products. No item is ranked as a universal winner.
02
Thermometers and scales
Compare range, stated accuracy, capacity and readability, then use a repeatability protocol before trusting small changes.
Build the measuring bench →03
Fermentation temperature control
Separate the product temperature, probe position, controller settings and heating or cooling equipment.
Map the control loop →One-question equipment chooser
Start with the measurement or control job.
This narrows the method. It does not rank merchants, confirm compatibility or claim that BrewMyBeer tested a product.
Suggested starting method
Choose a direct density method first
A suitable hydrometer or density meter measures density directly. A raw refractometer reading after alcohol appears needs an appropriate correction and the original reading; cross-check important endpoints.
Compare measurement methods →What the tables mean
Specifications are inputs, not verdicts.
- Range is the interval the maker says the instrument covers.
- Resolution or readability is the smallest displayed step. It does not by itself state accuracy.
- Accuracy is meaningful only with its stated range, conditions and method.
- Repeatability asks whether the same setup gives similar results across repeated trials.
Optional merchant catalog
Offers stay separate from the chooser.
The evidence pages above do not depend on a merchant relationship. Offer cards below identify their merchant and affiliate status. Check the current specification, regional model, final price and delivery on the merchant’s site.
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