Fruit Drying – Dehydration & Preservation

Views: 11     Author: Site Editor     Publish Time: 2021-09-24      Origin: Site

The guidelines for drying certain fruits offered here are an easy way to get started with dehydration. There will be hundreds of methods to prepare and personalise your own product. So make sure you can test and record your results to help you develop as you gain experience.

Ykp fruit dryer


A bunch of bananas Description automatically generated

Bananas are an excellent snack. They're easy to transport and have a creamy texture that hits the spot. Dehydrating bananas is an excellent way to keep them fresh all year. Banana chips are a tasty treat that may be carried in lunch boxes, mixed into trail mix, or enjoyed on their own.

Peel and slice your banana into coins of roughly identical thickness. For the most consistent results, arrange your layers without overlapping on your drying tray. Moisture will be trapped where chopped fruit overlaps, and parts may get stuck together, making it more difficult to release.

With any fruit, be careful not to overheat your dryers, as we want to dry it, not cook, stew, or burn it. Remember that the product's delicious sugar content exposes it to the possibility of caramelization (burned sugars) during the procedure. If we dry the product for a longer period of time, ideally, we want it to dry to a lovely chewy nibble or crunchy chip.




A bowl of food Description automatically generated with medium confidence

Raisin dehydration in heated air dryers was invented in the early twentieth century as a way to save rain-damaged raisins.

Many of the first dehydrators did not have fans and relied on natural draught to pass air slowly past fruits placed on a slotted floor or through fruits placed on trays. In the early 1920s, Commercial raisin drying equipment manufacturers began marketing a variety of forced-air dehydrators, which quickly became the industry standard. The main changes in the designs were the location of the air recirculation duct, the type of heating system, and the type of fan, but they all worked in the same basic way as truck-in-tunnel dehydrators do today.




A pile of blueberries Description automatically generated

Blueberries may be found in a wide range of snacks and meals. They are accessible to consumers in three forms: fresh, frozen, and dried.

Many people choose to sugar infuse Blueberries before the dehydration process to improve product quality and reduce loss. This gives them a lot of taste and packs them with flavour.

Tray drying Blueberries is the most cost-effective method for small and medium-volume production. During the drying stage, a process temperature of 165°(F), at least 500 feet per minute of airflow, and a relative humidity (RH) of 17% to 19%, is recommended.

The most popular tray drying processes for blueberries are Counter-Flow and Batch-to-Dry. Parallel-Flow has issues with case hardening, while Classic Batch results in variable product moisture content from rack to rack. Sizing the fruit before dehydration will increase the consistency and general quality of the product.

If you dry frozen fruit first, then try fresh fruit, you will observe that fresh fruit takes longer to dry. The frozen product has a shorter dwell period due to skin break-up and access within the fruit. When the cells in the fruit freeze, the cell walls shatter, enabling "free water" to escape considerably faster than fresh fruit.

Blueberries are traditionally dried whole, with the skin intact, in the past. However, some forward-thinking operators are now pushing fresh fruit through a set of rollers that are tight enough to split the skin but not crush the fruit, resulting in dramatically shorter dwell periods.

Please keep in mind that the commercial raisin drying equipment manufacturers are not a "magic" and , as with computers, it’s garbage in = garbage out when it comes to dryers. High-quality dried fruit must begin with high-quality fresh fruit gathered at its height of freshness. Yes, we can increase the sugar content of the fruit and extend its availability by freezing it, but ultimately, quality breeds quality, and quality sells! If you are looking to partner with the best commercial raisin drying equipment manufacturers in China, connect with us.


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