Traditional Chinese Brewing soy sauce using solar energy: Fermentation Process, Recipe & Home Production Guide

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Brewing soy sauce using solar energyIn the past, soy sauce has been produced using the traditional vat fermentation method, which not only has low yield and poor quality, but also consumes a lot of energy and costs.Advantages of using solar energy to brew soy sauce: 1. The floor space is greatly reduced. Traditional production requires an area of 600 square meters, with a courtyard full of large tanks and more than 600 large tanks and operating lanes. However, solar production only occupies an area of 134 square meters, reducing the area by 466 square meters.2. The cycle is greatly shortened. The traditional natural fermentation method takes 180 days to produce soy sauce, while solar water circulation fermentation is used to produce soy sauce, which only takes 21 days.3. Ensure hygiene and improve product quality. In the traditional method of producing soy sauce, after the raw material is fermented and the finished product is produced, it is dried and stored in the open air in large vats, which inevitably breeds mosquitoes and flies, as well as some rain and dust. The use of solar water circulation fermentation completely changed that phenomenon. The product has bright color, strong aroma and improved quality, reaching the third-level soy sauce standard issued by the ministry.4. Save energy and reduce expenses. Annual production is calculated based on 150 tons. Traditional production requires 150 tons of bituminous coal. Solar production can save 86 tons of bituminous coal, worth more than 3,600 yuan, and reduces environmental pollution.5. Save labor and increase income. The use of solar energy to produce soy sauce not only changes the working conditions, but also reduces the labor intensity of workers. In the seven months from June to September and April, May and October, boiler workers can save 506 working days. Each working day is calculated at one yuan and fifty cents, reducing expenses by 759 yuan.6. Solved the problem of employees having difficulty taking a bath. Make full use of energy.Solar circulation system In order for the solar water heater circulation system to achieve the purpose of circulation, it is necessary to select materials in strict accordance with the requirements in terms of shape and structure, and assemble them carefully. Judging from the selected collector, there are four basic parts in structure: light transmission, light absorption, circulation, and heat preservation.1. The light-transmitting part is the top cover of the collector, which is fixed on the angle steel frame and made of a layer of glass.2. The light-absorbing part is the heat-absorbing plate painted black.3. In the circulation part, the collector and drain pipes made of steel pipes are connected to the pool.4. The thermal insulation part is a thermal insulation layer located at the bottom and four walls of the collector to prevent heat loss, forming a complete thermal insulation and heat storage system.Economic Benefits Based on 16 production weeks throughout the year, the full utilization time of solar energy is 4 months, the half utilization time is 3 months, and the partial utilization time is 5 months. The annual output can reach 150 tons. With the addition of a fermentation tank, the annual output can reach 300 tons.The total investment in this research34266yuan, where the collector70square meters, investment9980Yuan, the service life is10Annual calculation, annual average investment998Yuan, based on the annual heat collection of the collector, that is: heat collection per square meter15010,000 calories×lighting area70Square meters × …

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