Alternate to Measuring FG

[tsname]

I normally brew small batches- 2 gallons, and I was looking for a method to measure FG without using a hydrometer. I have used a refractometer and have made the requisite calculations, but I saw another method on someone's blog.

It involved using graduated cylinders, measuring out 50mL of beer in one and water in the other, taking their mass, and doing some calculations. But for the life of me, I can't find the blog nor remember the formula. Does anyone know what formula it is, or is someone's Google-Fu better than mine that they can find that blog site?

 

[doug293cz]

I normally brew small batches- 2 gallons, and I was looking for a method to measure FG without using a hydrometer. I have used a refractometer and have made the requisite calculations, but I saw another method on someone's blog.

It involved using graduated cylinders, measuring out 50mL of beer in one and water in the other, taking their mass, and doing some calculations. But for the life of me, I can't find the blog nor remember the formula. Does anyone know what formula it is, or is someone's Google-Fu better than mine that they can find that blog site?

Getting the required accuracy with the volume & weight method is extremely difficult. Small errors in volume or weight lead to big errors in SG. In the thread I remember (sorry, no link) the OP eventually came to the conclusion I stated above, and gave up on the idea.

If you want to try anyway, knock yourself out.

Brew on