Shopping Guide: Key Information to Look For


1. Check the markings

  • Material markings The bottom of the container usually has a triangular recycling symbol. PC material is marked as "7", while PE material is marked as "2" (HDPE) or "4" (LDPE).

  • Food-grade certification Choose products with "Food Contact Use", "QS", or "FDA" certification marks to ensure material safety.

2. Avoid low-price traps

Overly cheap PC or PE containers may use recycled materials or inferior additives. It is recommended to choose products from reputable brands, which may be slightly more expensive but offer guaranteed quality.

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PC material has excellent transparency, similar to glass, so the buckets made from it allow you to clearly see the liquid inside, making it easy to check the water quality.


Methods for Identifying PC Material in Pure Water Buckets

The identification of PC water buckets follows a series of standards explicitly defined by the quality inspection authorities. According to the instructions of the State Administration for Market Regulation, bottled water manufacturers must use PC buckets (polycarbonate buckets), while PET buckets (polyethylene terephthalate buckets) are strictly prohibited due to the potential release of toxic substances upon heating.


Shopping Guide: Key Information to Look For

Overly cheap PC or PE containers may use recycled materials or inferior additives. It is recommended to choose products from reputable brands, which may be slightly more expensive but offer guaranteed quality.