I read this thread and went to my local bakery today, indeed they did give me as many 4.5gal icing buckets as i could carry as u say, but after getting them home and cleaning them i realized on the bottom it was not hdpe (high density polyethylene) 2 but it was pp (polypropylene) 5.
From my understanding i want buckets that are hdpe 2 is this not correct?
Am i good to use the pp 5 buckets as my primary? the 4.5gal would be great for the 3gal batch im about to make.
ref source im also using
http://www.virtualweberbullet.com/plastics.html
HDPE (high density polyethylene) is used in milk, juice and water containers in order to take advantage of its excellent protective barrier properties. Its chemical resistance properties also make it well suited for items such as containers for household chemicals and detergents. Most five gallon food buckets are made from HDPE.
Examples: Milk bottles, shopping bags
PP (polypropylene) has high tensile strength, making it ideal for use in caps and lids that have to hold tightly on to threaded openings. Because of its high melting point, polypropylene can be hot-filled with products designed to cool in bottles, including ketchup and syrup. It is also used for products that need to be incubated, such as yogurt. Many Cambo, Tupperware and Rubbermaid food storage containers are made from PP.
Examples: Bottle caps, take-out food containers, drinking straws