Description
RTO (regular twist off with flat edge)
RSB (regular twist off with step and button)
Team your glass jars up with one of these easy to use, metal twist caps. They twist on with one easy motion and will keep your contents inside the jar, secure for when the consumer is ready to use it. Glass makes it easy to see what you are purchasing as it is translucent and offers a high level of clarity – it also will not leach any chemicals as it is a very stable product. Endlessly recyclable, glass is a sustainable packaging product, making it a popular option among purchasers.
- Suitable for sterilization heat treatments up to 121ºC for 30 minutes
- Interior protection: double coat polyester and adhesive lacquer for acid and alkaline resistance
- External finish: polyester basecoat and varnish, customised printing available in various colours (MOQ’s apply)
- Free from BPA, PFAs and ESBO
- Manufacturing process complies with FSSC 22000, ISO 9001:2015 and HACCP
Caps/cartons should be stored in a cool and ventilated place in conditions with the temperature below 26ºC, relative humidity below 70% and without direct exposure to sunlight.
Capping Instructions:
- Warm the lids in steam to 100° C or pour boiling water over the caps and leave for 10 minutes. This makes the seal ring on the inside of the lid more malleable and improves the seal
- Tighten the lid to a maximum of halfway across the thread
- Leave the capped jar upright overnight to form a proper seal against the neck of the jar before checking for leaks or lying flat to apply the label
- Note, button caps (RTB) require hot contents in the jar to form a vacuum. This causes the button on the cap to be pulled down as the contents cool.