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The ginger crystallization process works by first softening fresh ginger through boiling, then slowly cooking it in a concentrated sugar syrup so the liquid penetrates the fibers, and finally drying the pieces so the dissolved sugar recrystallizes on the surface as a dry, sparkly coating.

The basic steps

1. Prep and pre-cook the ginger

   • Peel and slice fresh ginger (often ~3 mm / ⅛ inch thick) so pieces cook evenly.[

   • Boil or simmer the slices in water until tender; this softens the fibrous tissue and reduces harsh bite

2. Candy the ginger in syrup

   • The tender slices are simmered in a sugar–water syrup (simple syrup).

   • As the mixture cooks, water evaporates and the syrup becomes more concentrated; sugar diffuses into the ginger’s cells, replacing some of the water and giving the “candied” texture.

   • Many recipes cook until the syrup is thick and almost evaporated, or to a specific temperature (around 107 °C / 225 °F), which indicates a very concentrated syrup.

3. Drain and dry

   • The ginger is removed from the syrup and spread on a rack to cool and partially dry until tacky but not wet.

   • At this stage it’s essentially “candied ginger” (ginger preserved in or coated by syrup).

4. Crystallize the surface

   • The slightly dried pieces are tossed or rolled in granulated sugar.

   • As they continue to air-dry, residual surface moisture dissolves a thin layer of that sugar, then re-evaporates, leaving behind a fine layer of solid sugar crystals—this is the “crystallized” finish.

   • The result is a sweet, chewy interior with a dry, sugary exterior.

What’s happening on a physical level

• Diffusion and osmosis: During the syrup stage, the high sugar concentration outside the ginger drives water out of the plant cells and sugar in, preserving and sweetening the tissue.

• Concentration: Boiling reduces water content, raising the syrup’s sugar concentration until it’s supersaturated relative to the surface as it cools.[

• Recrystallization: When the syrup-coated ginger is drained, cooled, and rolled in sugar, the remaining thin film of syrup becomes supersaturated as it dries; sugar molecules arrange into solid crystals on the surface, giving the characteristic “crystallized” look and non-sticky feel.

“Il Regno di Lu” stands out from many other crystallized ginger products mainly for three reasons: the selected raw material, the low‑temperature candying process, and the “unglazed” formulation or the use of FOS (Fructo‑Oligosaccharides).

Origin and raw material

The brand uses ginger rhizomes from China’s Shandong region, historically known as the “ancient Kingdom of Lu,” which is renowned for the sensory characteristics of its ginger.
This positions the product as a “specific‑origin” crystallized ginger, rather than a generic one.

Positioning compared with other crystallized gingers

Compared with many generic crystallized gingers, “Il Regno di Lu” is presented as:

• a single‑main‑ingredient product (ginger + sugar, sometimes glucose), with no additives;

• a product with an explicit geographic origin (Shandong) and a brand name that directly evokes that tradition;

• a product with a less glazed texture and a formulation designed to be eaten as is (as a snack or for energy support), rather than only as a pastry ingredient;

• a product that distinguishes itself through the use of Fructo‑Oligosaccharides (FOS).

Fresh ginger rhizome is at the heart of this product because it preserves the characteristic flavor, aroma, and bioactive profile that define “real” ginger, while still allowing the candying process to create a stable, ready‑to‑eat format.

Flavor and aroma integrity

• Fresh rhizomes contain volatile oils and gingerol, the compound responsible for ginger’s sharp, peppery bite and bright aroma.

• Starting from fresh pieces (rather than dried powder) lets the process retain more of that fresh ginger character; crystallized ginger made from fresh rhizomes keeps roughly 70–85% of the original gingerol when properly candied.

• This gives a more authentic, complex taste compared with products based on dried or powdered ginger, which shift toward warmer, deeper notes dominated by shogaol after drying.

Texture and eating experience

• Using sliced fresh rhizomes creates a product with visible fibers and bite, not a homogeneous paste or powder.

• The candying process reduces water from around 60% (fresh) to about 20% (crystallized), concentrating flavor while keeping a chewy, snackable.

• This makes the product suitable to be eaten as is (snack, energy support) rather than only as an ingredient.

In short, fresh ginger rhizome is central because it delivers the authentic sensory profile and a credible “whole-root” story, while the crystallization process locks those qualities into a convenient, shelf‑stable form.

“Il Regno di Lu” ginger products (crystallized ginger, with or without glucose/FOS) can be used across several practical categories, all aligned with the brand’s positioning as a snackable, functional, and culinary ingredient.

1. Snacking and on‑the‑go energy

• Eaten directly as a sweet‑spicy snack between meals or during travel.

• Added to trail mix, granola, or mixed nuts for a zesty, energizing boost.

2. Beverages and functional drinks

• Steeped in hot water to make ginger tea or added to herbal/green tea blends.

• Used to prepare ginger‑infused syrups for cocktails, mocktails, iced tea, or “ginger fizz”‑style drinks (the brand itself shares cocktail and fizz recipes on its blog).

• Chopped into smoothies for a spicy kick, especially in tropical or fruit‑based blends.

3. Baking and desserts

• Incorporated into cookies, cakes, muffins, gingerbread, banana bread, scones, and fruit breads.

• Used in rice pudding, crumbles, fruit salads, and as a topping for ice cream or brownies

• Dipped in melted chocolate for an elegant after‑dinner treat.

4. Savory cooking and gourmet touches

• Chopped into stir‑fries, marinades, sauces, and glazes for chicken, fish, or vegetables, adding sweet‑spicy depth.

• Used in rice dishes, salads, and chutneys/cranberry sauces to lift flavor with a zesty note.

5. Wellness and digestive support

• Consumed in small amounts to help soothe the stomach, reduce nausea, and support digestion, especially while traveling or after meals.

• Positioned as a functional food that combines pleasure (snack) with a light wellness angle (digestive comfort, warming effect).

Combining ginger with F.O.S. (Fructo‑Oligosaccharides) creates a synbiotic‑style formula in which ginger supports digestive function and comfort, while FOS act as a prebiotic “fuel” for beneficial gut bacteria.

What ginger contributes

• Ginger (via gingerols, shogaols, and related compounds) helps stimulate digestive motility, supports enzyme activity, and can soothe nausea and stomach discomfort.

• Research suggests ginger can modulate the gut microbiota, increasing beneficial bacteria and reducing some pathogenic species, and can strengthen gut barrier proteins.

What F.O.S. contribute

• FOS are non‑digestible fibers that reach the colon intact and are selectively fermented by beneficial bacteria such as Bifidobacterium and Lactobacillus

• This fermentation produces short‑chain fatty acids (SCFAs) like butyrate, which support the intestinal lining, reduce inflammation, and improve overall gut barrier function.

• Regular FOS intake is associated with better bowel regularity, reduced constipation, and a more balanced microbial ecosystem.

Why combine them

• Complementary actions: ginger works mainly on motility, nausea, and anti‑inflammatory tone; FOS work on microbiota composition and barrier health. Together they address both symptoms (comfort) and underlying gut ecology (balance).

• Potential synergy: ginger’s bioactives can create a more favorable environment for beneficial microbes, while FOS provide the substrate those microbes need to thrive; this can enhance production of SCFAs and reinforce gut barrier integrity.

• Functional positioning: the combination supports a clear “digestive comfort + microbiome support” story, stronger than ginger alone or FOS alone, and fits well with a snackable, everyday functional product.

In short, ginger + FOS is used to create a dual‑action digestive support: ginger for immediate comfort and functional tone, FOS for long‑term microbiome balance and gut barrier health.

The main benefits of F.O.S. (Fructo‑Oligosaccharides) come from their role as prebiotics: non‑digestible fibers that selectively feed the “good” bacteria in the gut, with downstream effects on digestion, metabolism, and overall health.

Main benefits of F.O.S.

1. Support for the gut microbiota (bifidogenic effect)

FOS selectively stimulate the growth of beneficial bacteria, particularly Bifidobacterium and Lactobacillus, in the colon.
This contributes to a more balanced microbial ecosystem, with a lower proportion of potentially pathogenic or “putrefactive” bacteria.

2. Improved bowel regularity and digestive comfort

Regular intake of FOS (around 3–15 g/day) is associated with:

• increased frequency of bowel movements;

• softer stools that are easier to pass;

• reduced constipation and, in some cases, reduced diarrhea.
  Some studies also report a possible benefit in managing intestinal inflammation and discomfort linked to microbiota imbalances.

3. Production of short‑chain fatty acids (SCFAs)

Gut bacteria ferment FOS, producing short‑chain fatty acids (butyrate, acetate, propionate).
SCFAs:

• support the integrity of the intestinal barrier;

• have anti‑inflammatory activity;

• support energy metabolism and immune health.

4. Metabolic and cardiovascular benefits

FOS can help:

• improve lipid metabolism, reducing total cholesterol, LDL, and triglycerides (especially in people with metabolic alterations).

• support better glycemic control and increased insulin sensitivity, particularly in people with diabetes or pre‑diabetes.
  They have a low glycemic index and do not directly raise blood sugar.

5. Mineral absorption and bone health

FOS improve intestinal absorption of minerals such as calcium, magnesium, and zinc.
This can contribute to better bone health and reduce the long‑term risk of osteoporosis.

6. Immune support and intestinal protection

A healthier microbiota, supported by FOS, is linked to:

• a more effective immune response;

• greater resistance to certain intestinal infections;

• a possible reduction in the risk of some chronic diseases (cardiovascular diseases, some cancers, autoimmune diseases), thanks to the combined effect on microbiota, inflammation, and metabolism.

In short, F.O.S. act as “fuel” for beneficial bacteria, with benefits ranging from bowel regularity and digestive comfort to support for metabolism, cardiovascular health, bones, and the immune system.

Yes. The “Il Regno di Lu” crystallized ginger products are marketed as vegan‑friendly.

• The ingredient list is essentially fresh ginger + sugar (and in some SKUs glucose and/or FOS), with no animal‑derived ingredients such as gelatin, honey, dairy, or animal‑based additives

• Several retailers explicitly label the product as “Bio e vegano” (organic and vegan), confirming its suitability for a vegan diet.

In the best supermarkets in your area, or by ordering the product directly from us.
Would you like to buy it from us? Or are you not sure where to find it in your area? Contact us.

The scientific evidence related to our product has been compiled in a document. Download the PDF.