flash freezing demonstration: Thawing wingless gyoza (for side dishes)

This time, we conducted an experiment on how to freeze and thaw wingless fried dumplings, assuming that they would be served as a side dish.

When serving fried gyoza as a side dish, you want to recreate the crispness of freshly baked dumplings.

If you freeze baked dumplings, they will lose their freshly baked crispiness when thawed.

Frozen fried dumplings are also available, but most of them are steamed and thawed, so they don't return to their crispiness easily.

So, what is the best way to thaw frozen gyoza and make them crisp again? Check out the results of testing how to freeze baked dumplings and thaw them to a high quality.

Frozen fried gyoza

In this experiment, we laid out a cooking sheet on a French baking sheet, placed the baked dumplings on top of it, and rapid freezing them in an Artlock freezer.

When baking for commercial purposes such as supermarket side dishes, I have the impression that about 20 to 30 pieces can be baked at the same time.

Of course, depending on the store and industry, you may be able to burn more or, conversely, a little less. This time, we assumed that 20 to 30 items could be baked at the same time, and we proceeded with the experiment assuming that we would process them all at once.

Checking frozen quality

To check the frozen quality of the frozen dumplings, we measured the weight of the dumplings before and after freezing.

Normally, when food is frozen naked, the cold air inside the freezer evaporates the moisture, making it lighter. This time, we found that the weight of the dumplings that were rapid freezing using the Artlock Freezer remained the same before and after freezing, indicating that the dumplings were able to maintain their moisture content while freezing.

After freezing, the dumplings are tightly vacuum packed as shown here.

By removing air thoroughly and vacuum-packing, contact with oxygen is avoided, which maintains the deliciousness and quality of the dumplings and extends the shelf life.

The frozen and vacuum-treated dumplings were stored in the freezer for one week.

Defrosting fried gyoza

Next, thaw the frozen dumplings.

This time, I will show you the results of defrosting using a steam convection oven and changing the temperature and time. Before thawing, I lined up the frozen gyoza like this, coated them with sesame oil, and then thawed them.

In oven mode, the result was as follows.

Preset temperature	230℃	230℃	250℃
time	4 minutes	5 minutes	4 minutes
finish	a little cold	vest	Fried gyoza style

The best conditions are heating at 230℃ for 5 minutes.

When heated at 250℃ for 4 minutes, not only the grilled surface but also the surrounding skin became slightly crispy, giving it a fried gyoza-like finish. In addition to this, heating in combination mode at 150℃ and 20% humidity for 6 minutes produced a pretty good finish.

Conclusion

​We tested a method to recreate the crispness of freshly baked gyoza when served as a side dish.

This time, I tried thawing fried dumplings that were rapid freezing frozen in an Artrock freezer using a steam convection oven.

As a result of measuring the weight before and after freezing and checking the frozen quality, we found that the moisture content was well maintained during freezing.

We also compared the results by varying the temperature and time during thawing.

The best conditions were heating at 230°C for 5 minutes.

The fried dumplings thawed using this method regained their crispiness and were delicious. Please try.

By using this method, you can bake gyoza during idle time and thaw them in 4 to 5 minutes when an order comes in. Also, you can thaw and cook a large amount of gyoza in a short time at buffets etc. so that they look like they were freshly baked. This makes it very easy to use and makes your work more efficient!

Also, making gyoza from filling to filling is a time-consuming process.

Considering efficiency, 200 pieces is better than 100 pieces. It is obvious that it is much more efficient to prepare 300 pieces at a time rather than 200 pieces.

If you freeze food while maintaining high quality using the Artlock Freezer and thaw it under appropriate conditions, you will be able to efficiently serve food by wrapping it in bulk and thawing and serving only the required amount.