flash freezing demonstration strawberries (short-term storage)
This time we will be experimenting with freezing and thawing strawberries.
This time, we conducted an experiment in which we froze freshly harvested strawberries in an Artlock freezer and thawed them at a later date.
- Ingredients selection: Freshly harvested strawberries (Tochiotome)
- Freezing conditions: 1 piece with the stem removed or cut in half
- Freezing method: Artlock freezer
- Thawing method: Crush with a mixer or thaw at room temperature
When thawing the fruit, crushing it in a blender is intended to be used as a smoothie, while thawing at room temperature is intended to be used as half-thawed frozen fruit.
When frozen with the Artlock Freezer, food can be frozen without packaging and then packaged after freezing. Therefore, even soft foods such as strawberries can be frozen with high quality without being crushed.
In order to reduce noise in the results due to differences other than the experimental conditions, we selected strawberries that were as similar in size and shape as possible.
Freezing pretreatment ~ Freezing
Storage - Thawing
After storage
Thawing
elapsed time | strawberry condition |
5 minutes | still hard |
10 minutes | A knife fits easily |
15 minutes | The core is hard, but drips are starting to appear. |
20 min | The core is hard, but drips are starting to appear. |
half an hour | About 80% thawed |
40 minutes | somewhat cold |
50 minutes | Completely unzipped |
sensory evaluation
Even when it was half-thawed, I could really taste the sweetness and sourness.
If the food is completely thawed, drips will become noticeable and the texture will become limp.
We do not recommend using the method of completely thawing the food, as it will not taste good and you will feel the loss of flavor even more strongly.
At Daybreak, we recommend using frozen fruit in smoothies, processing it, or half-thawing it as frozen fruit and eating it as is!
For more information about smoothies and processing, please contact Art Rock Food below.
*The photo below shows a strawberry mix, a 100g package, and a mix using strawberries.
You can easily make smoothies by mixing it with liquid in a blender.
Following on from this experiment, we are also conducting experiments using different types of rapid freezer.
We plan to report the results separately, so please look forward to it!