Silicone folding strainer 1.Made of pure silica gel suitable for foodstuff. 2.SGS- FDA OR SGS-LFGB appro Silicone folding strainersilicon filter,made of 100% food grade silicon,suited for FDA test.The standing tempreture of this silicon filter is:-40-260 degree celsius.it is safe for food and dishwasher,microwave,oven,freezer.various colors are available.OEM is welcome.