I'm sorry to be obnoxious, and I suspect you are not a native English speaker, but I have to correct you:
The plural of "product" (a thing that is made) is "products". With s a the end.
The plural of "produce" (a thing that is grown, like carrots or apples) is "produce". Without an s at the end. Why? The obvious (and correct) answer is that English is weird, bizarre, and illogical. The formal answer is that "produce" is a noun that is inherently plural, like data: the word means multiple grown things, uncountably many, including one. So one apple is produce, three apples and a pear and a banana are produce, and a while fruit salad (you know the stuff that comes in cans from Libby's and looks like it was colored with chemicals, because it was) is also produce.
Since this is the joke thread, and having just been obnoxious in teaching an English lesson, let me add a joke about singular and plural:
How come "bra" is singular, but it covers two things? While "panties" is plural, but it only covers one thing?