Sorry, I realize that was a bit cryptic.
'Straight' is a technical term in American Whiskey law much like 'single malt' is in Scotland. For the longest time I had no idea what that meant. I thought that only one malt was used in the beer that the whisky was distilled from. I had no idea that it meant that all the malt whisky came from a single distillery. Skip ahead to paragraph (iii) for the part about 'straight whiskies' then come back to (1)(i).
(1)(i) "Bourbon whisky", "rye whisky", "wheat whisky", "malt whisky", or "rye
malt whisky" is whisky produced at not exceeding 160° proof from a
fermented mash of not less than 51 percent corn, rye, wheat, malted barley,
or malted rye grain, respectively, and stored at not more than 125° proof in
charred new oak containers; and also includes mixtures of such whiskies of
the same type.
(ii) "Corn whisky" is whisky produced at not exceeding 160° proof from a
fermented mash of not less than 80 percent corn grain, and if stored in oak
containers stored at not more than 125° proof in used or uncharred new oak
containers and not subjected in any manner to treatment with charred wood;
and also includes mixtures of such whisky.
(iii) Whiskies conforming to the standards prescribed in paragraphs (b)(1)(i)
and (ii) of this section, which have been stored in the type of oak containers
prescribed, for a period of 2 years or more shall be further designated as
"straight"; for example, "straight bourbon whisky", "straight corn whisky", and
whisky conforming to the standards prescribed in paragraph (b)(1)(i) of this
section, except that it was produced from a fermented mash of less than 51
percent of any one type of grain, and stored for a period of 2 years or more in
charred new oak containers shall be designated merely as "straight whisky".
No other whiskies may be designated "straight". "Straight whisky" includes
mixtures of straight whiskies of the same type produced in the same State.
So, if Jim Beam has a mashbill containing exactly 51% rye then that is the minimum allowed to be labeled a straight rye whiskey. My bottle doesn't have an age statement on it. My guess is it is at least 4 yo. It is not my favorite whiskey, but I quiet like it.