I bought a bulk tub too and put some in a smaller tub to ensure the bulk one doesn't go solid.Dennis King wrote: ↑Tue Apr 17, 2018 9:03 pmI just bought some from the malt miller at £26 for 1.8kg which is better value but I do plan to use it more for my deep cleans.Just had a look and the pbw at its minimum dosage of 7g per liter means i would need about 210g to clean my fermenter. The smaller pots of pbw are about £11 for 450g so thats about £5.50 a go for my fermenter. Your right its not cheap
I use it for both fermenting vessel clean and Grainfather. Weighed it out so I now use 1 tablespoon per 7.5 litres warm water for cleaning FV, 2 tablespoons for 15 litres for Grainfather. A non scratch sponge backed scourer (pennies from ALDI) and rubber gloves gives thorough clean, neither need to be filled when scoured gently with the PBW solution. It is certainly much cheaper in bulk than the grainfather cleaner and apparently much more effective too.
I initially baulked at the cost too but rationalised it by thinking if I risk wrecking my Grainfather with oxy or other cheaper cleaner in our very hard water area for the sake of a pound or less per brewday to clean it properly would seem false economy!