Copper and zinc, right? OK, they say tossing a few pence in the kettle will solve the copper problem but what about zinc?
Has anyone ever tried simply emptying a vial of liquid zinc gluconate into the kettle or fermenter?
There isn't much - 5 ml usually - so it'd hardly set the taste off, but talking about giving some additional food to the little guys it might work.
Zinc itself will not spoil anything but what about the agent - this very gluconate thing?
Has anyone ever tried simply emptying a vial of liquid zinc gluconate into the kettle or fermenter?
There isn't much - 5 ml usually - so it'd hardly set the taste off, but talking about giving some additional food to the little guys it might work.
Zinc itself will not spoil anything but what about the agent - this very gluconate thing?