What brands of beer contain sodium nitrate?

Sodium Nitrate has always been a constituent of beer, as it has

• incidentally or purposely - for many other foods. But beginning

in 1980, a modification of the brewing process brought the amount of nitrosamines in beer down to 1 microgram per serving - a level it has now been at for the last 30 years. This is considered negligible. The amount in bacon or cigarettes, particularly in overcooked bacon - is much higher.