Sub-Zero PreservationWolf
  • Ultimate guardian of food’s goodness

  • Refined design, endless possibilities

The three pillars of food preservation

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Three Pillars of Food Preservation

There’s more to preservation than keeping food cold. Sub-Zero built-in products guard freshness by addressing the three pillars of food preservation.

Temperature control

Consistency counts for a lot in keeping food fresh longer. Sub-Zero’s microprocessor controls monitor the refrigerator’s interior temperature and hold it within one degree of the temperature you set. A new, more advanced seal around all four sides of the door, so sophisticated it’s patented, locks in cold air and holds down energy use.

Sub-Zero vastly outperforms standard refrigeration in maintaining consistent temperature - keeping food fresh.

For illustrative purposes only.

Proper humidity

Fresh foods need chilly, humid air to stay fresh. Frozen foods require frigid, dry air to preserve flavor. Yet the typical refrigerator-freezer compromises, using a single compressor to attempt both jobs; refrigerator and freezer share air — too dry for fresh foods, too humid for frozen.

Sub-Zero doesn’t compromise. Dual refrigeration — separate, sealed systems for refrigerator and freezer — ensures optimum preservation conditions for each type of food. And a special seal on the produce drawers creates what we call a “crisper crisper” to preserve the goodness of fresh vegetables even longer.

Purified air

Many fresh foods (apples chief among them) emit ethylene gas, a natural compound that hastens spoilage.

Sub-Zero built-in refrigerators have an antimicrobial air purification system, based on NASA technology, that scrubs the air of ethylene as well as mold, viruses, and bacteria.

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Temperature Control

Deliciousness dialed in

Digital controls keep the temperature within 1°F of where you set it. Doors seal magnetically on all four sides, locking in cold air and saving energy. There’s even a “fridge within a fridge,” a lower-temperature, higher-humidity zone that keeps vegetables crisp and flavorful even longer.

Built-in refrigerator control panel

Sub-Zero BI-30U Over-and-Under Refrigerator/Freezer

The Sub-Zero BI-30U over-and-under refrigerator/freezer offers easy-access refrigerated storage with a roll-out freezer drawer.
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Sub-Zero BI-30UG Over-and-Under Glass Door Refrigerator/Freezer

The 30"-wide Sub-Zero over-under model with a glass door offers easy-access refrigerated storage, a convenient roll-out freezer drawer, and all the freshness-preserving features of Sub-Zero built-in refrigeration.
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Sub-Zero BI-36F All Freezer

Our largest capacity freezer, the Sub-Zero BI-36F all freezer offers a cavernous 22.8 cubic feet that you can organize with the three adjustable wire shelves and five adjustable door shelves.
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Sub-Zero BI-36R All Refrigerator

The 36" Sub-Zero all refrigerator has air purification and 23.3 cubic-feet of interior storage capacity that is easy to organize with adjustable glass shelves, door shelves and other compartments.
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Sub-Zero BI-36RG Glass Door All Refrigerator

In a dual installation with Sub-Zero BI-36F all freezer, the Sub-Zero BI-36RG all refrigerator with glass door offers maximum refrigeration capacity with a contemporary look.
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Sub-Zero BI-36S Side-by-Side Refrigerator/Freezer

The Sub-Zero BI-36S side-by-side refrigerator/freezer provides maximum side-by-side refrigeration capacity in a compact width.
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Sub-Zero BI-36U Over-and-Under Refrigerator/Freezer

The Sub-Zero BI-36U over-and-under refrigerator/freezer gives you large-capacity refrigeration, plus generous freezer space (and an ice maker) in the two-tier pullout drawer.
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Sub-Zero BI-36UFD Over-and-Under French Door Refrigerator/Freezer

The 36” Sub-Zero French door refrigerator/freezer is one of the latest in our renowned line of built-in models featuring dual refrigeration, water filtration and air purification among other advanced food preservation features.
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Sub-Zero BI-36UG Over-and-Under Glass Door Refrigerator/Freezer

The Sub-Zero BI-36UG over-and-under with glass door offers large refrigerated storage, plus a convenient roll-out freezer drawer.
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Sub-Zero BI-42S Side-by-Side Refrigerator/Freezer

The Sub-Zero BI-42S side-by-side refrigerator/freezer offers convenient side-by-side refrigeration in a 42-inch width.
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Sub-Zero BI-42SD Side-by-Side Refrigerator/Freezer with Dispenser

The Sub-Zero BI-42SD side-by-side with dispenser offers convenient side-by-side refrigeration along with an ice and water dispenser through the refrigerator door.
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Sub-Zero BI-42SID Side-by-Side Refrigerator/Freezer with Internal Dispenser

The 42" BI-42SID product is a perfect match of convenience and aesthetics, keeping water and ice at your fingertips without having to sacrifice the clean appearance that has made Sub-Zero a leader in timeless built-in design.
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Sub-Zero BI-42UFD Over-and-Under French Door Refrigerator/Freezer

The Sub-Zero 42" over-and-under features our most advanced food preservation system, and the largest interior capacity of any French door available.
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Sub-Zero BI-48S Side-by-Side Refrigerator/Freezer

The Sub-Zero BI-48S side-by-side refrigerator/freezer is energy conserving and features dual refrigeration.
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Sub-Zero BI-48SD Side-by-Side Refrigerator/Freezer with Dispenser

The Sub-Zero BI-48SD side-by-side with dispenser offers ice and water dispensing through the refrigerator door. Exterior refinements include redesigned grilles and lower-profile hinges.
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Sub-Zero BI-48SID Side-by-Side Refrigerator/Freezer with Internal Dispenser

The statement-making, 48" BI-48SID product is a perfect match of convenience and aesthetics, keeping water and ice at your fingertips without having to sacrifice the clean appearance that has made Sub-Zero a leader in timeless built-in design.
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