Description
RTO (regular twistoff)
These metal RTO caps are designed specifically for use with glass jars, complementing the look as well as being functional by keeping your goods nicely contained and are stocked in two colours. Glass acts as a barrier against external influences keeping products safe for longer even once opened. It will not leach any harmful chemicals into the products packaged within, making it a food contact safe packaging option that looks great and helps consumers see what they are getting before they make their purchase.
- 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.