Slurry and Mash Heaters

Pick BX Starch Cooker/Heater

What is a "BX Slurry and Mash" Steam Injection Heater?

A Pick BX Heater provides instantaneous and complete cooking of starch and other water-miscible slurries.  It is also a great choice for viscous slurries such as waste grease and oil. Heating with a Pick BX efficiently reduces the viscosity to promote separation of components at the centrifuge.


It is proven effective on pearl, modified, and cationic starches with solids concentrations up to 35% and cooking temperatures ranging from 90°C – 150°C.


The low velocity design minimizes mechanical shear of the starch granules... an important consideration for cooking most cationic starches.


These heaters can also perform "double duty." They are often used to pre-heat water which is then blended with the starch powder to form the initial slurry. The slurry is then pumped back through the same heater for final cooking.


These compact, non-plugging BX Direct Steam Injection Heaters are available to process flow rates in excess of 600 GPM.


​Typical Applications Include:

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We’re committed to providing the best customer support before and after the sale with a team of factory sales engineers that are recognized experts in the industry. They’re ready to put that expertise to work for you.


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Benefits of the Pick Slurry Heater:

The unique design of the Pick BX Heater offers key advantages over other high-velocity venturi devices and indirect heat exchangers.


Low Pressure Drop

Starch flows through the heater without obstruction. This results in negligible pressure drop when handling high viscosity formulations. 

Low Noise

Noise generation is significantly lower and pipe vibration virtually eliminated.


Non-shearing action provides uniform product consistency

Low Velocity Mixing

This provides a “thorough cook” of starch granules yielding a better cooked product.

How the Slurry Heater Works:


  1. Water-miscible liquid or product enters mixing chamber here.
  2. Steam and liquid mix thoroughly within the heater body.
  3. Heated liquid or product outlet.

BX Slurry Cooker

The Pick Heater is an engineered product and heater selection is primarily based on Steam Demand.

For preliminary heater selection use the following Sizing Formula. Next match the liquid flow rate to the appropriate pipe size. The selection should be verified by your local Pick Heater Rep or a Factory Sales Engineer.


Please contact us with questions.

Sizing Formula:


Steam Demand

(lb/hr)= 0.43 x flow(GPM) x ∆ T (ºF)


(kg/hr) = 0.092 x flow(LPM) x ∆ T (ºC)


Example: 200 GPM x 50ºF temperature rise x 0.43 = 4,300 lb/hr of steam. You would require a 6X50-3BX which has a maximum rated steam capacity of 5,000 lb/hr, and a maximum water flow rate of 500 GPM with welded flanged connections.

BX System


Steam Injection Constant Flow Starch Cooker

BX Slurry Heater Technical Specifications


Model No. 6X7-1BX 6X10-1BX 6X25-1BX 6X50-1BX 6X75-1BX 6X100-1BX 6X150-1BX 6X200-1BX 6X350-1BX 6X500-1BX
Steam Capacity Lb/hr 700 1,250 2,500 5,000 7,500 10,000 15,000 20,000 35,000 50,000
Kg/hr 320 565 1,130 2,260 3,390 4,520 6,780 9,040 15,820 22,600
Liquid Pipe Size Range (inches).  Flanged ¾ - 2 1 - 3 1 ½ - 4 2 - 4 2 - 6 2 ½ - 6 3 - 8 4-  10 4 - 10 6 - 12


Heaters are manufactured in Carbon Steel or 316SS.  Other alloys/materials available upon request. Liquid and steam piping is available in ANSI/DN Flanged construction.

Custom Systems


Pick Pre-Packaged Hot Water sets are custom designed to meet process industry needs effectively and efficiently.
  • Pre-engineered skids, wall mounts or floor mounts available to meet your specific requirements.
  • Compact design can fit most customer space constraints.
  • Fully assembled and ready for operation (includes circulation pump, complete valving, controls and instrumentation in a skid-mounted package).
  • Pilot Scale and Production Systems.

DSI Starch Cooker System

DSI Starch Cooker System