Gypsum

[Wezzel]

Sorry if this has been asked before but:

I have only recently started treating my water. I use a salifert kit, water report from Thames Water & Grahams water calculator. I normally treat all 38 litres of water at the start of the day but my question is:

Is it okay to add the gypsum along with all the other salts, CRS etc at the start or am I better splitting it into two parts and putting it directly into the mash and boil.

[vacant]

CRS goes into the liquor first.

I mix all the gypsum with the dry grains prior to mashing. I believe some people add half their gypsum to the mash then half to the boil. Try both ways. I couldn't tell any difference, can you?

[Wezzel]

Thanks Vacant,

I'll split it between the mash tun and boiler.

[john luc]

When calculating how much calcium needs to be added,do everybody just add the gypsum as per gram. The reason I ask is I understand that gypsum is only 23% calcium.