For a Musty Cask.
Boil some Pepper in water and fill the Cask with it scalding hot.
For a very stinking Vessel.
The last Remedy is the Coopers taking out one of the Heads of the Cask to scrape the inside, or new-shave the Staves, and is the surest way of all others, if it is fired afterwards within-side a small matter, as the Cooper knows how.
These several Methods may be made use of at Discretion, and will be of great Service where they are wanted. The sooner also a Remedy is applied, the better; else the Taint commonly encreases, as many have to their prejudice proved, who have made use of such Casks, in hopes the next Beer will overcome it; but when once a Cask is infected, it will be a long while, if ever, before it becomes sweet, if no Art is used. Many therefore of the careful sort, in case they han't a Convenience to fill their Vessel as soon as it is empty, will stop it close, to prevent the Air and preserve the Lees sound, which will greatly tend to the keeping of the Cask pure and sweet against the next Occasion.
To prepare a new Vessel to keep Malt Liquors in.
A new Vessel is most improperly used by some ignorant People for strong Drink after only once or twice scalding with Water, which is so wrong, that such Beer or Ale will not fail of tasting thereof for half, if not a whole Year afterwards; such is the Tang of the Oak and its Bark, as may be observed from the strong Scents of Tan-Yards, which the Bark is one cause of. To prevent then this Inconvenience, when your Brewing is over put up some Water scalding hot, and let it run throu' the Grains, then boil it and fill up the Cask, stop it well and let it stand till it is cold, do this twice, then take the Grounds of strong Drink and boil in it green Wallnut Leaves and new Hay or Wheat Straw, and put all into the Cask, that it be full and stop it close. After this, use it for small Beer half a Year together, and then it will be thoroughly sweet and fit for strong Drinks; or
Another Way.
Take a new Cask and dig a Hole in the Ground, in which it may lye half depth with the Bung downwards; let it remain a Week, and it will greatly help this or any stinking musty Cask. But besides these, I have writ of two other excellent Ways to sweeten musty or stinking Casks, in my Second Book of Brewing.
Wine Casks.