2016 Chili Grinding Open House 4800 Azusa Canyon Rd., Irwindale, CA 91706 See the complete production on how our popular Sriracha Hot Chili sauce is made. Currently only October 1 is open. You can tour the factory mid week, but no chili griding will be available. Visit: http://www.huyfong.com/toursnow/ Starting September 10th - October 1st every Saturday 10am - 3pm join us for our third annual chili grinding open house event. Experience grinding season in full production, from seed to sauce. Free sampling, t-shirts, and a lion dance performance! (Free items while supplies last) Fun for all ages. Check calendar for availability. Please register per vehicle, as we are limited in parking spaces per hour. Also, please note the total amount of guests attending. Note: In case of rain we will not be receiving chili peppers and therefore, you will need to reschedule your tour time. Please check your emails continuously for updates, changes, or cancellation.