HDPE is a high-density plastic that is very stiff, has a good temperature resistance and a very good water vapour barrier. PET plastics are highly transparent in appearance, available in different colours, lightweight and tough against gases and liquids. PET is also highly resistant to diluted acids, oils and alcohols. Glass bottles are heavy compared to PET and HDPE . The choice of bottles is with the customer, based and product and market acceptability.