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1. Raw Materials and Processing: The tomatoes used for jam should be fully ripe, and any unripe, rotten, or pest-infested fruits should be carefully removed. Green or damaged tomatoes must not be included to ensure quality.

2. Crushing: The ripe tomatoes are crushed using a mixer or blender. It is usually possible to puree them without adding water, depending on their moisture content.

3. Sieving: After crushing, the mixture is filtered to separate the pulp from the solids (such as skins and seeds), leaving behind a smooth juice.

4. Concentration and Ingredient Addition: The tomato juice is then concentrated by evaporation. Sugar is added in a 1:1 ratio with the raw material. Additionally, 0.7% sodium alginate is incorporated. Sodium alginate should first be soaked in five times its weight in water and then slowly heated to form a uniform colloid. After that, 0.2% citric acid and 0.05% potassium sorbate are added. The mixture is heated until it reaches approximately 40–42% solids, ensuring a thick and stable consistency.

5. Preparation of Pineapple Jam: Fresh and ripe pineapples are peeled, cored, and blended. They are then cooked and concentrated. A 1:1 ratio of white sugar is added, along with 0.7% sodium alginate. The sodium alginate must be soaked in five times its volume of water and gradually heated to create a smooth colloid. This is then mixed into the pineapple pulp, combined with sugar, and further cooked until the solids reach around 40–42%. At this point, 0.2% citric acid and 0.05% potassium sorbate are added before stopping the heating process.

6. Mixing Tomato and Pineapple Sauces: The two sauces can be combined in different ratios, such as 1:1 or 2:1. Once mixed, they are heated and boiled to ensure even blending and stability.

7. Packaging: The final product is filled into 200g four-rotary bottles. It is important to close the bottle caps immediately after filling to maintain freshness and prevent contamination.

8. Sterilization: The filled bottles are sterilized by boiling in water at 100°C for 15 to 20 minutes, which ensures the product is safe for long-term storage.

9. Cooling: After sterilization, the bottles are cooled to room temperature. The finished product is now ready for distribution and consumption.

This detailed process ensures a high-quality, shelf-stable product that combines the rich flavor of tomatoes with the sweet, tangy taste of pineapple. Each step is designed to preserve the natural characteristics of the ingredients while enhancing texture and preservation through proper concentration, addition of stabilizers, and thorough sterilization.

Gas Grill

The gas oven is a modern cooking device that combines efficient heating and easy operation. It uses clean gas as an energy source to heat ingredients quickly and evenly through a precisely controlled flame, and whether it is baking pizza, barbecue or baked bread, it can be easily harnessed to bring mouthwatering taste. Gas ovens are not only easy to operate and quickly preheat, but also energy efficient, making them ideal for modern kitchens and commercial dining venues.
When the Gas Pizza Oven is working, the gas flow is controlled by the gas valve. After the ignition device ignites the gas, the flame burns in the furnace to produce high temperature. Heat is transferred to the pizza through the furnace wall, which heats it evenly and gradually RIPS it. Gas pizza ovens are usually equipped with temperature control systems that can precisely adjust the baking temperature to ensure the baking effect of the pizza.
High efficiency: Gas Pizza Oven heating speed, can reach the required baking temperature in a short time, improve baking efficiency.

Temperature control: Equipped with advanced temperature control system, the baking temperature can be accurately adjusted to meet the baking needs of different pizzas.
Environmental protection and energy saving: Gas as a clean energy, combustion produces less waste gas, less pollution to the environment. At the same time, the gas pizza oven has a high energy efficiency ratio, which can effectively reduce energy consumption.
Easy to clean: Components such as furnaces and baking nets are usually made of easy-to-clean materials, which facilitate daily maintenance and maintenance.

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