CoolSteam® BLue
U.S. Leader in Nut Pasteurization

42
Nut Pasteurization Lines

9
Almond TERP approvals

900
Millon lbs. Pasteurized Annually

Laitram’s patented CoolSteam® nut pasteurization technology is an all-natural, continuous-flow process with verified settings to achieve a 5log+ reduction of salmonella with excellent product quality and low capital and operating costs.

01

Optimal balance of lethality and quality, nuts truly look and taste raw. Unmatched consistency.

02

Unmatched worldwide customer service. Laitram Service Technicians and Engineers Based Globally with central Spare Parts Warehouse Locations.

03

Competitive capital and operating costs. Continuous process with no product handling. No storing needed, ready to pack product.

04

Proven reliability.
Simple, flexible design and operating principle.

Product Applications

Consistently Excellent Product Quality. Looks and Tastes Raw, Natural Crunch. Gentle and Flexible: Proven on the Most Sensitive Nuts. Validations for Almonds, Pistachios, Seeds, Walnuts, Cashews, Macadamias, Pecans.

The CoolSteam process virtually mitigates all moisture uptake and skin lift to eliminate disturbing each nut's raw form and quality. CoolSteam® Blue produces exceptionally consistent product quality.

Position / Role

Taylor Quill

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Position / Role

Alex Smith

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Position / Role

Morgan James

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Continuous Steam 4-Step flow

Laitram Machinery's nut pasteurization system is a continuous flow, 4-step, first-in, first-out low-temperature steam process that organically pasteurizes tree nuts for a 5log+ reduction of pathogens. CoolSteam® Blue provides a gentle treatment, no vacuums, and a continuous process with no product handling to avoid damage to fragile products such as cashews, almonds, macadamias, or walnuts. The product comes out ready to pack; no storing to equalize the temperature before packing.

Preconditioning step to reduce condensation

Preheat

Cool

Bring Product Below 80˚F

Dry

Convection Drying to flash off surface moisture and stabilize the texture

Kill Step, 5-log Reduction

Pasteurize

Why Pasteurize Nuts?

Are all Tree nuts Pasteurized?

Certain organisms, such as salmonella, can survive on the surface of a nut for an extended period of time in a dormant state. In fact, recent studies indicate that low moisture conditions actually strengthen these organisms' heat resistance and persistence. Hence, the application of surface pasteurization treatments for tree nuts is becoming more commonplace. Read more.

What Our Clients
Say About Us

"We are so satisfied with our new pasteurizer that we are drawing up plans for a second Laitram CoolSteam line. The entire Laitram team has been great to work with. We look forward to a very long-term relationship with the good folks at Laitram."

Nichols Farms

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Max Johnson

The benefit of the Laitram unit is that we're running at a much lower temperature, which preserves the actual quality of the nut, especially when it comes to skin lifting. And then basically just matching your input, what you put in is exactly what you get back out.

Chris Shaw, Operation Manager