Nope, my son didn't suddenly turn into a girl.
We had a friend with us and my son wasn't feeling photogenic
at picture taking time.
The tours are free (woo hoo!) but they recommend calling ahead or registering online since they can only accommodate a certain number of people at a time. Our tour started with a short movie about the history of the company and then we had a tour guide lead our group of about 25 people through the factory.
Cameras aren't allowed inside the factory itself (you can see a few pictures here) but on the day we went we were able to see them making pretzels, corn chips, popcorn and potato chips. You're usually just feet away from the big machines and conveyor belts (usually behind glass). The kids and I loved watching everything being sliced, mixed and packaged up. Our tour guide also told us some interesting tidbits ~ like the fact that the snacks that fall onto the floor during the packaging process are fed to cows on a nearby farm!
After we watched and learned about them making the potato chips, our tour guide went out onto the production line and scooped up a tray of still-warm chips that we got to sample (HUGE hit with the kids!). At the end of the tour, we all also got a free snack size bag of chips (and lots of regular sized snack foods in all sizes available for purchase).
The whole tour lasted about an hour. On the day we went, we stopped first at Annie's Playground to play and have a picnic lunch, but there's a cafe/snack bar there at the factory if you wanted to eat before or after your tour.
I've known about this Herr's factory for years (maybe from a Girl Scout trip ages ago), but when I was in the gift shop I saw this book with all sorts of factory and company tours from all over the country. It looked to be really informative, telling the cost, about the tours (like whether it was the actual factory or just a demonstration), etc. Even if you're not here on the East Coast and able to check out this potato chip factory, I'd definitely recommend seeing if there is a similar tour near you ~ the kids and I loved it and it was a great way to take a look at all that's involved behind the scenes.