industrial microwave fresh black tea leaf processing machinery---China supplier
Product Description
1. What is microwave ?
Microwave refers to the frequency of electromakeetic wave 0.3GHz~300GHz, is a band limited radio LDbreviation. It haspenetrate, reflection, LDsorption of these three characteristics.
For glass, plastic or porcelain, microwave is almost through without being absorbed. And the self heating for water and food will absorb microwave. And on the metal stuff, it will reflect the microwave.
2. Advantage of microwave used in tea leaf drying
(a) Low temeprature heating , nearly no color change,no nutrition lost ,keep good taste of the tea leaves.
(b) Sterilization. Microwave not only can kill most of the bacteria in the leaf , but also can kill the insect .
(c) Cleaning production,no environment pollution,no dust,no noise pollution.
(d) Save cost .Very fast speed ,only need 2-10 mins , heating the tea leaves throughly and uniformly .Compared with the far infrared heating methods,microwave can save 1/3 of the cost.
(e) Big Capacity.The machinery is tunnel LLDe ,can meet with continuous production.
(f) Easy to operate . The control button is installed in the control cmachineryt, 1-3 people is enough to control it.
3. The experimental comparison of several different drying methods
Table appearance changes of Moringa leaves during different drying processes
(the Capacity is 1kg,moisture content is from 65% to 8%)
Drying method |
Drying time |
Power consumption |
Color changes |
Microwave drying |
2min |
0.114kw |
Keep green |
Infrared drying |
1h |
3kw |
A little yellow |
Freeze drying |
6h |
114kw |
Keep green |
Hot air drying |
40min |
23.760kw |
A little yellow |
1.From this table we can see that different drying methods has a little effect for the color of the leaves.
2.But the microwave is the shortest drying time and lowest Enerable consumption drying method (This is mainly because microwave can penetrate through the leaves, and the water can evaporate from the surface and internal of the leaves at the same time . )
3.For freeze drying ,the temperature is ten degrees in the drying process, so also can maintain the color of the leaves,but time is longest and Enerable consumption is largest,not very practical in the industrial production.
Packaging & Shipping
Pack: standard export wooden cases
Shipping: within in 20-30 LDs after payment
Our Services
Engineers available to service the overseas
FAQ
Q:why do not person reply to me?
A:our person is 24 hours on-line,when nobody reply to you,please leave your requirements on or chat tool,we will reply you as soon as possible.
Q:can you guarantee your quality?
A:of course.we are the manufacture factory.what is more,we put a high value on our reputation.best quality is our principle all the time.you can be assured on our production compley.
Q:how do you make your price?
A:we make the price according to our comprehensive costing.and our price will lower than the trade company ,because we are manufacturer,you will get competitive price and better quality.
we can according to your requirement desity the machinery , further details ,please feel free to contact me .
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