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Milling: Difference between revisions
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==Sieve testing== | ==Sieve testing== | ||
[[File:Sieves-with-grain.png|thumb|Sieves with grain sample. Photo by Dr. Adam Bittner.]] | [[File:Sieves-with-grain.png|thumb|Sieves with grain sample. Photo by Dr. Adam Bittner.]] | ||
Sieves can be used to scientifically measure the particle sizes of the grist. This is called granulometry, or sieve testing. Unfortunately, the sieves are a bit expensive and the testing process is somewhat labor-intensive. Furthermore, the results are borderline useless since the crush produced by home brew mills differs greatly from that of a commercial mill, even with similar granulometry results.<ref name=bittner>Bittner A. [ | Sieves can be used to scientifically measure the particle sizes of the grist. This is called granulometry, or sieve testing. Unfortunately, the sieves are a bit expensive and the testing process is somewhat labor-intensive. Furthermore, the results are borderline useless since the crush produced by home brew mills differs greatly from that of a commercial mill, even with similar granulometry results.<ref name=bittner>Bittner A. [[User_blog:Adam/Think_like_a_scientist:_Sieve_testing|Think like a scientist: Sieve testing.]] Brewing Forward website. 2021. Accessed February 2021.</ref> Therefore, we do not recommend home brewers invest in the materials or effort required for sieve testing. | ||
Our recommendation notwithstanding, sieve testing can be used in combination with visual inspection to compare how different milling parameters can affect the crush, and it can be helpful to maintain a tight degree of consistency through periodic testing. Large breweries use a machine to conduct the test, but it can also be done by hand using a standardized protocol, which has been shown to produce satisfactory results.<ref>[https://doi.org/10.1094/ASBCJ-61-0246 Malt grist by manual sieve test.] ''J Am Soc Brew Chem.'' 2003;61(4):246–249.</ref><ref>Schwarz P, Barr J, Joyce M, Power J, Horsley R. [https://www.tandfonline.com/doi/abs/10.1094/ASBCJ-60-0010?src=recsys Analysis of malt grist by manual sieve test.] ''J Am Soc Brew Chem.'' 2002;60(1):10–13.</ref> See [[Sieve testing]] for more information. | Our recommendation notwithstanding, sieve testing can be used in combination with visual inspection to compare how different milling parameters can affect the crush, and it can be helpful to maintain a tight degree of consistency through periodic testing. Large breweries use a machine to conduct the test, but it can also be done by hand using a standardized protocol, which has been shown to produce satisfactory results.<ref>[https://doi.org/10.1094/ASBCJ-61-0246 Malt grist by manual sieve test.] ''J Am Soc Brew Chem.'' 2003;61(4):246–249.</ref><ref>Schwarz P, Barr J, Joyce M, Power J, Horsley R. [https://www.tandfonline.com/doi/abs/10.1094/ASBCJ-60-0010?src=recsys Analysis of malt grist by manual sieve test.] ''J Am Soc Brew Chem.'' 2002;60(1):10–13.</ref> See [[Sieve testing]] for more information. | ||