Viewing post #1068865 by CommonCents

Ecscuba said:From Livestrong site:
"PP stands for polypropylene, a strong plastic mostly used in caps and lids. You can identify polypropylene by a triangle and the number 5 on the bottom of your container, although many lids do not include this "resin number". PP has a high melting point and can be "hot-filled" or used with products that need to incubate. It also does not transmit any known chemicals into food. This makes it an ideal material for a garden container, though large PP containers may be hard to find."

Smaller PP containers are everywhere. If you use yogurt cups, sour cream tubs, or the plastic drinking cups like "Solo" brand cups and the knockoffs of those, all of those are made from polypropylene and usually marked with the number 5 in the recycling triangle.
FYI, Milk jugs are generally LDPE (low density polyethylene), recycling number 2, and are also very safe for food.
Recycling numbers 2 (LDPE), 4 (HDPE) and 5 (PP) are considered the "safest" plastics for food containers.