Ideal replacement for any silicone or rubber seal for all types of flip top bottles. Will not impart any flavour or aroma. Copper Tun Flip Top bottles are available in 500ml and 750ml sizes for your convenience. These bottles are ideal for maturing beer as well as storing sauces and purees. Always clean with a weak solution of liquid detergent and sterilise with Copper Tun No Rinse Steriliser prior to use. Avoid the use of harsh chemical cleaners and sanitizers.