All honey, jam and bird’s nest glass jars produced by our factory are manufactured exclusively with food-safe soda-lime glass raw materials. Every batch of raw material is tested before production starts. Our glassware meets major international food contact standards, with strict testing for heavy metal migration, lead and cadmium release and harmful substance extraction.

Under normal usage, stable glass material will not react chemically with acidic, sweet, oily, high-sugar or protein-rich food. It is safe for direct contact with bird nest soup, raw honey, fruit jam, fruit sauce, chutney, pickles, nut butter and all kinds of edible paste. Unlike plastic containers, glass does not transfer strange flavors to food and will not release additives when filled with hot contents.

We can provide formal test reports and certificates upon request. These documents help you smoothly clear customs in your target market, satisfy local food regulatory requirements, and meet inspection rules from supermarkets, organic stores and e-commerce platforms. Our QC team also inspects each finished jar for cracks, bubbles, black spots and rim defects, to make sure only qualified jars are packed and shipped for your food brand.