In last years, researchers have raised concerns about the ability to emulate BPA estrogen and potentially alter the hormonal system.

Here you have some little tricks to avoid or limit exposure to BPA.

1. - Do not reuse the bottles

Use are not scratched bottles. If made with BPA, scratches produced a greater release of the chemical. Moreover, small scratches are an ideal place for bacteria to grow.

2. - Check the recycling code package

Plastic containers are marked with a code of recycling at the bottom, also known as resin identification code. Avoid using plastic containers coded 3 or 7, as some plastics marked with these codes may contain BPA.

3. - Reduce consumption of canned foods

The cans were developed as a method to preserve food and reduce packaging weight, which until then were made of glass, used to send food to the army about 200 years ago. Despite a great invention, the cans have some potential danger.

In a process known as migration, BPA used in the lining of cans can leach into the food content, especially liquid foods such as soups and sauces. In order to reduce exposure to BPA and other undesirable effects of eating too many processed foods, we must reduce consumption of cans.

4. - Be careful when heating food

Do not put very hot or boiling liquids in plastic containers containing BPA. Bisphenol A is released from the container at high temperatures more easily.

Similarly, do not insert plastic food containers in the microwave. Polycarbonate is tough, durable, but over time can break, releasing BPA at high temperatures.

5. - Choose non-plastic containers

There are many alternatives to plastic containers, including glass, ceramics, wood, porcelain and stainless steel containers. Most of these alternatives can be reheated safely and are durable.