What's the plural form of malt whiskey? Here's the word you're looking for.
Answer
The noun malt whiskey can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be malt whiskey.
However, in more specific contexts, the plural form can also be malt whiskeys e.g. in reference to various types of malt whiskeys
or a collection of malt whiskeys.