When it’s unachievable to block all dampness or oxygen from getting present in the deal before sealing, desiccant packs will help mitigate the effects by absorbing humidity and oxygen. It is usually enjoyment to observe - it operates and practically nothing appears to happen. Then it seals the bag https://www.linpack.com/news/the-hidden-benefits-of-vacuum-packaging-machines-for-e-commerce-and-retail