SilpatPerfect Pizza Non-Stick Silicone Baking Mat, 12" Round, Orange, AH305-01

Q: Does the manufacturer say if these are dishwasher safe?

EASY CLEANING Wipe the SILPAT™ with a damp, soft sponge and then rinse with clean water. Shake to remove excess water and dry in open air. A weak solution of detergent or soap may be used if needed. Use a neutral pH detergent (pH=7). Dry in an oven at 212°F (or 100°C) for a duration of 2-3 minutes. Store flat or rolled. Note: The oily feeling after washing is normal, as is discoloration. Strong flavored foods may leave a trace of their scent on the SILPAT™.

Q: Can Silpat be used on a cast iron pizza pan?

Sure, the surface won't matter. In fact, a cast iron pan might be BETTER ( as you probably know) for pizza as the cast iron will stay hotter when you're putting it in the pan.