BioFresh Refrigeration

BioFresh is the name Liebherr gives to its fresh-keeping drawers, which are intended to operate at a lower temperature than the main compartment, close to freezing, and with a choice of dry or humid conditions on many models. This page explains what that means in practice for owners, and why a drawer’s behavior differs from the rest of the cabinet.

Where a BioFresh drawer sits

The drawers are normally found at the bottom of the fresh-food section, above a freezer drawer or on their own. Some cabinets have one drawer, and others have two or three. The drawers are designed to hold fish, meat, dairy products, fruit, and vegetables for longer periods than ordinary shelves allow.

Dry and humid modes

A slider or a setting on the drawer controls how much air passes through. The dry mode suits meat and fish, and the humid mode suits fruit, salad, and herbs. If the slider is stiff or the mode cannot be changed, moisture behavior will differ from what the drawer is designed to deliver, even if the temperature is correct.

• One or more sealed drawers at the base of the cabinet
• A temperature zone close to freezing
• Selectable humidity on many models
• Separate display or control on certain platforms

Symptoms and their meaning

Frozen edges on salad leaves, crystallized surfaces on meat, and drawers that feel no colder than the shelves above are all reported. The first can be an over-cold zone or a load pressed against the back wall. The last can be a seal or airflow problem. A thermometer placed in the drawer, left for several hours, separates these cases.

Label and model location

The plate is usually on the interior wall of the main compartment. For BioFresh specifics, the operating instructions tied to the service number state the intended temperature range for your unit, which is the standard against which readings are compared.

Owner checks

Keep contents away from the rear wall, close the drawer fully, and make sure the lid sits flat. Operate the humidity setting and note whether it moves smoothly. Do not remove the drawer rails or any cover behind them.

Related pages

The BioFresh service page describes what a visit involves. The error-code pages list tokens that relate to compartment sensors on supported platforms, and models with BioFresh drawers include several in the model section.

Why local shopping habits matter

San Francisco households tend to buy fresh produce and fish frequently and store it for days. A drawer that freezes or fails to chill is therefore noticed quickly, and early measurement helps separate a loading habit from a real fault. Note what was stored and how long it took to change.

Everyday use of the drawers

Wrap strongly scented items, keep produce dry before storing, and allow warm food to cool before it goes into the drawer. Rotate stock so older items sit at the front. These practices help the drawer do its job and reduce the condensation that can make a healthy drawer appear to have a problem.

When readings and results disagree

Sometimes food spoils early even though the thermometer reads correctly. In that case, humidity setting, packaging, and the length of storage are the most likely factors. If food continues to freeze or spoil with correct readings and sensible loading, record the details for the technician.

Describing a BioFresh problem

Say which drawer, what food, how it was packaged, and which humidity setting was used. Add the drawer reading and the main compartment reading, taken at the same time, with the set point shown on the display. Those four pieces of information usually let a technician judge whether the issue is loading, setting, or hardware.

Frequently asked questions