3 hours ago, teonzo said:I haven't found any regulation talking about that. I checked my capers package and it's not written there, so I'm pretty sure it's not required by law, at least here in Italy.
Just checked the producer's catalogue and the info in Italian is "calibro" (= caliber / size / diameter). I suppose it's a label info used by this particular producer to state the caper size, 7 indicates capers that pass through a sieve with 7 mm holes, 13 for 13 mm holes.
Teo
But anything that passes through a 7 mm hole would also pass through a 13 mm hole. Even quicker.