Can brown paper food trays hold hot or greasy food?

1. High Temperature Resistance of Brown Paper Food Trays

Ordinary uncoated brown paper food trays can usually only withstand temperatures of ≤ 80 ℃, such as just out of the pot of hot soup, fried food, the temperature is often more than 100 ℃, this kind of lunch box is very easy to deformation, softening, soup leakage, and high temperature pulp may be residual bleach and other trace chemicals will also be released. The brown paper food trays with coating are different, PLA (polylactic acid) coated lunch box temperature ≤ 100 ℃, can be a short period of time to hold coffee, porridge, but at high temperatures may be slightly softened, so do not put into the microwave oven. If the surface of the paper lunch box PE (polyethylene) coating lunch box temperature resistance up to ≤ 120 ℃, can be loaded with high-temperature fried food or hot soup, but its plastic content, difficult to degrade, recycling also need to peel off the coating.

2. Oil-proof performance of brown paper food trays

When uncoated brown paper food trays meet oily food such as fried chicken and roasted meat, the grease will quickly penetrate the paper fibres, resulting in softening of the trays and staining of their appearance, so they are only suitable for salads and sandwiches, which are dry or low in oil. However, if brown paper food trays have PLA coating on the surface, it can effectively block grease and oil, and can be used for deep-fried food or dishes with sauce; PE coating has the best greaseproof performance, but is not as environmentally friendly, and needs to be disposed of as 'other rubbish'. In terms of physical greaseproof design, the embossed liner is suitable for short-term use as it reduces the contact between food and the paper surface through concave-convex texture and slows down grease seepage; the built-in aluminium foil layer is both greaseproof and heat-resistant, but it is not microwaveable and is difficult to recycle.