No, not spicy.
From their website:
.At In-N-Out Burger, quality is everything. That's why in a world where food is often over-processed, prepackaged and frozen, In-N-Out makes everything the old fashioned way..
.Our commitment to quality starts with our hamburgers. We make them from fresh, 100% pure beef. They are free of additives, fillers and preservatives of any kind. But the focus on quality starts well before we deliver our hamburger patties to our stores. We own and operate a world class patty making facility. Since we only serve burgers, fries and drinks, making a high quality hamburger patty is everything to us..
....
.[FONT=Arial,Helvetica,sans-serif][SIZE=-1][SIZE=-1]In fact, we don't even own a microwave, heat lamp, or freezer.
...
[/SIZE][/SIZE].[FONT=Arial,Helvetica,sans-serif][SIZE=-1][SIZE=-1]We even bake our buns using old-fashioned, slow-rising sponge dough. And we make every burger one at a time, cooked fresh to order.
,,,
[/SIZE][/SIZE]. .Then we cut them right in the store, one potato at a time. And cook them in 100% pure, cholesterol-free vegetable oil. To top it all off, we also make our delicious shakes from real ice cream..