Yield Increase Disc BM50/BM50 Plus (Fine mesh) - BacBrewingYield Increase Disc for Speidel Braumeister 50L The following table is the result of a test made on a Braumeister BM50 Pre boil results: TEST LT ACQUA MASH KG GRANI LT ACQUA SPARGE PRE BOIL VOL PRE BOIL GRAVITY EFFICIENZA PRE BOIL BM 50 LT + DISCO FILTRANTE BACBREWING (cotta American IPA) 62 16 13 60 1061 76% As you can see from the chart 16kg of malt have been used (BM50), so the 23% more than the standard malt pipe capacity (13kg). The same