Wash lettuce and vegetables
Salad and vegetables will last longer (over 2 weeks) if they are in the last wash with "Knödelhilfe" / "dumpling white"
(Active ingredient sodium sulfite) are rinsed.
Dumpling aid acts as an antioxidant and prevents browning at the interfaces.
In addition, salad and vegetables should still be kept as airtight in a plastic bag with zip lock in the vegetable compartment of a refrigerator.
Dumpling help can be bought in the supermarket (for example Toom, Real ...).
You will find them classified in Ködelprodukten or binders such as sauce binder etc.