Preparation of ice cream mixes

Preparation of ice cream mixes

Ice cream mixes are formulated from whole milk, skim milk, cream, and in some cases water, along with other added ingredients.

The Process

A typical mix would be prepared with the following approach: 

• Liquid ingredients are weighed and metered into the process vessel. Heating follows to aid the melting of the fat,
• dissolving, and hydration of the subsequent ingredients.
• Powdered ingredients such as skim milk powder, sugars, whey powder, and more are added to the liquid and mixed
• until appropriately dispersed.
• Then the stabilizing and emulsifying agents are added. These may be dry premixed with the other ingredients, including
• sugar, to decrease particle agglomeration and further “weight” the powder to incorporate the liquid.
• Then the fat is added. But before that, butter or other solid fats are melted in a separate vessel. 
• Then the mix is pasteurized at 185ºF (85ºC).
• The mix is then homogenized, usually by passing through a high-pressure homogenizer. 
• The product is then “aged” into a holding or ripening tank allowing the stabilizing agents to hydrate and the fat to crystallize.
• Flavour and coloring can be added at this particular stage. 
• The finished mix is then frozen in special freezers, which whip a controlled amount of air into the mix.

In many countries, the legislation covers the composition and labeling of products. These regulations restrict the user to particular ingredients and specify the minimum content of the fat and total solids to be used.

Refining of Edible oil

 Edible oils are found in coconut, corn, cotton, olive, palm, nuts, soybeans, and sunflower. Furthermore, they contain gums and other impurities that are removed by reducing, weakening, and inserting candles. Let’s understand the process to refine them. 

Edible oil processing plant

1. Degumming: The first stage of the vegetable oil refining process

Motivation is the first stage of refining vegetable oil that begins with the heating of crude oil. The feed is placed in a degumming container where the oil temperature rises slightly. Besides, the oil weight is reduced by removing Phospholipids / Gums from the raw vegetable oils. There are usually two different types of phospholipids present in crude oil depending on hydration levels:

• Hydratable or Water Degumming

• Allergic or Acid Degumming

2. Neutralizing: Phase Two of the Vegetable Oil Refining Process

Neutrality or simply Neutralizing is the second step to refine the vegetable oil after finishing. In this process, the feedstock is transferred to Neutralizers where the ambient temperature is maintained at 55 C to 70 C depending on the quality of the crude oil. Further, the oil is constantly disturbed to maintain consistency.

The main purpose of energy reduction is to remove the Free Fatty Acids present in crude vegetable oils. In chemical refining, alkali is used to reduce FFA and to remove oil acidity.

The main purpose of the Neutrality Process is to replenish FFA with an alkaline solution and reduce the soaps in the water phase. In the edible oil industry, caustic soda is used in the treatment of FFA's. Sometimes potassium hydroxide can also be used by other processors. 

FFA is a stearic acid that breaks down into a triglyceride molecule leaving diglyceride in fats.

The free fatty acid is derived from the H + carboxyl group. This H + of the active stearic acid group reacts with the OH- caustic soda (NaOH) group to produce soap and water.

Wahal Engineers offers a wide range of suitable additives for acid and sodium hydroxide, as well as Flash mix for clay distribution:

1. High Shear In-Line Mixers

• Aeration is free

• Easily restored to an existing plant

• Ready for ongoing processes

• Availability of ultra sanitary models

• Availability of multistage units, thus offering a high degree of cutting, resulting in refined particle size and faster processing times

2. Wahal Engineer Flash Mix

• Designed for rapid dispersion of powders into liquids

• Reduced cleaning requirements

• Small operator input is required

Read more ... https://wahalengineers.com/inline-homogenizer/

Shoe Polish production process

Various polishes for floors, furniture, and shoes can be provided in a solid way. It is prepared with a water emulsion containing particles such as paraffin wax, bex wax, and carnauba wax, and also includes other additives such as dyes, stabilizers, and surfactants.

Wahal Engineer High Shear mixer can eliminate the intermediate production stages. Further, product quality and consistency can be improved and processes reduced significantly. Additionally, the beauty of the Wahal Engineer mixer in addition to the standard agitators, comes from the mixing/shearing action that works in a 3 phase mixing cycle.

Shoe Polish production process : - Cream, Waxing, Polish

The manufacturing/production process

While the composition of polishes varies depending on the end-user, the typical production process can be as follows:

• The wax is weighed in a boat and heated until melted, between 120 - 185 ° F (50 - 85ºC) depending on the type.

• Then the water is charged to a separate vessel and heated to help distribute the additives.

• Surfactants, stabilizers, and dyes are placed in a liquid phase and mixed until completely dissolved.

• A hot water phase is added to the melted well and then mixed to form an emulsion.

• The product is then cooled to just above the setpoint and then poured or thrown into mold or cans as needed.

• Lastly, the polish solidifies by continuing to cool. ...... Read more