Anything smaller than a D-size battery (that’s the large round one) can be a choking hazard for babies and toddlers.
According to the Australian Government Department of Health, common foods that cause choking in children include: hard lollies, chewing gum, corn chips, small round and oval foods like grapes, berries and cherry tomatoes, seeds and fruit with seeds or pips, nuts and popcorn.
Prevent choking by cooking and grating, finely slicing or mashing hard fruits or vegetables like carrots, celery and apple. Cut food into pieces smaller than a pea that children can easily chew and swallow. Remove skin from sausages and hot dogs and cut into smaller pieces.
If you think a child under 1 year is choking, call triple zero (000) for an ambulance, stay on the phone with the operator while following the first aid steps. If an older child is choking, encourage them to cough to see if it dislodges the object.