• 77 Posts
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Joined 1 year ago
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Cake day: July 5th, 2023

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  • Ok, so if you are interested in measuring methods for density:

    1. gravimetry - you weigh your sample in standard vessel (you have to have constant temperature)

    2. the floaters (hydrometer) - you read the line on the scale.

    3. the U tube - it measures resonant frequency when it is vibrated. The frequency is dependent on density of the tube + sample.

    4. optical methods- these indirectly measure something in the sample, in our case it is sugar.

    • refractometry - you measure how the refractive index changes and loads of stuff can affect it like alcohol
    • polarimetry - you pass polarized light through tube and measure the twist by aligning another filter.

    So you have to ask yourself what you measure. With methods 1-3 it is gravity, with methods 4 it is something different which points you to some approximation of gravity. Also I am long from school so my terminology might be mixed up.










  • In our case it is issue of quantity, we have 40l batches and it is too much for one person to pull the bag/manipulate with pots.

    We have false bottom pot on lift and it isn’t ideal but still much better than BIAB. It needs some work/ new pot for heating (we got the induction heater for free) and because the bottom valve is bad.

    After trying/helping some friends with their systems I think that our setup is maybe the best you can have.



  • I will start.

    Last month I helped my dad with converting his settup to BIAB. It didn’t go too well, he thought it would be simpler and less work. Tldr it is simpler but it requires more work. So he will probably stay on current settup. We have to upgrade the pots for induction (it is needed after 15 years some valves are falling apart).









  • Man, more I looked in to it the more I ask if it would be better to use decathlon buy back program and buy another bike (like GRVL 120).

    But if I would suggest to look in to Microshift Advent X or sword shifters/derailleurs. They are cheaper, only 10 speed (that’s good enough) and you can get decent gear range also if you go 2x it gets to even larger. It is compatible with shimano and fully mechanical.

    I bikepack with 34/46 front and 11-42 back 10 speed and it is just barely enough gears.