Cling film is a common household item that we use daily to keep our food fresh. It's not only used for covering leftovers but also by many people to store cosmetics, making it a versatile product. However, despite its widespread use, there's still a lot of important information about cling film that we should be aware of, especially since it comes into direct contact with our food. Today, I’ll share some essential knowledge about plastic wrap to help you make safer and smarter choices.
1. Understanding the Different Types of Plastic Wrap
Plastic wrap is made from various materials, each with its own properties and safety considerations. The three main types are:
a) Polyethylene (PE): This is the most commonly used type, known for being safe and suitable for storing fruits, vegetables, and other non-heated foods.
b) Polyvinylidene chloride (PVDC): Often used for packaging cooked or hot dishes, as it offers better moisture and oxygen resistance.
c) Polyvinyl chloride (PVC): While widely available, PVC has raised health concerns due to the potential release of harmful chemicals when heated. It’s best to avoid using this type when heating food.
In terms of safety, PE and PVDC are considered more reliable than PVC.
2. How to Identify Different Types of Plastic Wrap
To tell them apart, check the packaging. Reputable manufacturers usually label the material clearly. If the wrap is labeled as PVC or if the material isn’t specified, it’s safer to avoid it.
Another way to test is by burning a small piece. PVC will produce black smoke and an irritating smell, and it tends to burn quickly and then extinguish. In contrast, PE and PVDC won’t emit much smoke or odor, and they may drip or continue burning after the flame is removed.
Visually, PVC wraps tend to be more flexible, transparent, and sticky compared to PE and PVDC, which might be a sign to avoid them if possible.
3. Important Tips for Safe Use
Lastly, here are some key reminders to ensure safe usage:
- Never cover hot food with plastic wrap. Doing so can cause vitamins to break down and may also lead to chemical leaching from the wrap. Always let your food cool down first.
- When heating oily foods in the microwave, make sure the plastic wrap doesn’t touch the food directly. Oils can reach high temperatures and potentially melt the wrap, causing it to stick to the food.
- When using plastic wrap in the microwave, cover the container and poke a small hole with a toothpick to allow steam to escape. This prevents the wrap from bursting due to pressure buildup.
- Each brand of plastic wrap has a different heat resistance rating. Some can withstand up to 100°C, while microwaves often reach around 110°C. For long cooking times, choose a wrap that’s specifically labeled as microwave-safe and heat-resistant.
By understanding the different types of cling film and how to use them safely, we can protect our health while enjoying the convenience of this everyday item. Stay informed, stay safe!
Water Bed
A water bed is a bed in which the filler inside is water, replacing the inner spring of a spring mattress or other material fillers. Because water flows and has no fixed shape, when a person lies on the Waterbed Mattress, the water will flow and fit according to the human body. This will improve the person's comfort.
â— DOING water beds meet European safety standards (biocompatibility EN71).
â— The US patented fill valve is designed for maximum airtight and watertight safety.
â— The Water Mattress supports the body evenly and fits the physiological curve of the spine; the water disperses pressure, effectively easing physical and mental fatigue and promoting deep sleep.
â— The water bed can produce an excellent hot compress effect. The warm effect can promote blood circulation and restore cell vitality, and quickly and completely remove metabolic waste from the body.
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