Regulation 171 of the Food Regulations for fruit juice states that fruit juice which is made by the dilution of concentrated fruit juice shall be fruit juice made by addition of water to concentrated fruit juice by an amount which is equal to the volume of water that was originally removed from the fruit juice. For example, 20% of water was originally removed from orange juice to make concentrated orange juice. If the product is subsequently to be sold as orange juice, the amount of water added back to the concentrated orange juice must be 20%.

In addition, the fruit juice made by dilution of concentrated fruit juice must be labelled with words like, "From fruit concentrate" on the product label in letters not less than 3mm in height.