iOS Siri: How to add multiple items to Reminders?
Siri can perform only one action at a time.
So to add five different items to a shopping list you need to activate Siri five times. The same is true for other actions like “wake me up at 6 and set a timer for five minutes”.
I found that if you want to dictate multiple items on the list you have to say “new line” after each item. For example: “add garlic (new line) Tomatoes (new line) Basil (new line) To Chris’s grocery list in AnyList”