I think if you want to save your money safely and the nominal value of money you don't want to reduce better you invest in gold or silver, because with your investment in gold or silver the nominal value of your money will not decrease, the price of gold will continue to rise at every year, different if you save money in a bank, every year or month will be tax deducted from the bang, and your money will continue to decrease even with a small value. I would rather recommend you to invest safely in gold or silver.