Can you use this product to increase water hardness in a spa hot-tub?

Yes certainly, this is a food grade product so suitable for any application. Kind regards, Dan

Is this suitable to add to fermenting sour pickles?

Well on the packet label does say suitable for all food preparations so I'd say yes. I added to mortar mix to speed up drying time. If its good enough for cheese making, should be good for pickles but check your recipe I'd say.

can this product be reused once it has absorbed moisture

No..it is designed to absorb water and therefore you just tip the liquid away and replace the calcium chloride. I use it to refil my dehumidifiers.. the disposable ones. So that I can reuse many times.

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Calcium Chloride - 2kg (Dihydrate Flakes)

Product ID: 48432101

Details

Age range (description)
Adult
Allergen information
Contains:
Brand
Intralabs
Item form
Flakes
Item weight
2 Kilograms
Manufacturer
Intralabs

💧Food-grade, aquarium safe

🧪High-purity Calcium Chloride (E509)

⚖️2kg pure flakes

€ 34.98

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your aquarium and lab game with premium Calcium Chloride flakes!

BULK 2 KG SUPPLY - Enough to last through multiple maintenance cycles without hassle.
EASY TO HANDLE FLAKES - Convenient form factor for precise measurement and application.
PRECISION DOSING FOR AQUARIUMS - Keep your aquatic ecosystem thriving with food-grade purity.
VERSATILE INDUSTRIAL LAB USE - Ideal for scientific, industrial, and pet care applications.
TRUSTED BRAND WITH PROVEN QUALITY - Intralabs delivers consistent, high-grade Calcium Chloride every time.

Calcium Chloride Dihydrate Flakes (2kg) from Intralabs offer a high-purity, food-grade solution ideal for aquarium dosing and laboratory use. Presented in an easy-to-handle flake form, this product ensures precise application and long-lasting supply, trusted by professionals for consistent quality and safety.

Specifications

ASIN	B00DRPKLIG
ASIN	B00DRPKLIG
Age Range Description	Adult
Allergen Information	Contains: Allergen-Free
Best Sellers Rank	24,575 in Pet Supplies ( See Top 100 in Pet Supplies ) 282 in Aquarium Water Treatments
Brand Name	Intralabs
Customer Reviews	4.5 4.5 out of 5 stars (159)
Customer reviews	4.5 4.5 out of 5 stars (159)
Global Trade Identification Number	00722301147740
Is discontinued by manufacturer	No
Item Form	Flakes
Item Nype Name	Calcium Chloride Flakes
Item Weight	2 Kilograms
Item model number	2kg
Manufacturer	Intralabs
Manufacturer	Intralabs
Manufacturer Contact Information	Intra Laboratories Ltd, Unit 5&8 Devonshire Meadows, Plymouth, PL6 7EZ
Manufacturer Part Number	722301147740
Model Number	2kg
Number of Items	1
Primary Supplement Type	Calcium
Product Dimensions	30.48 x 20.32 x 5.08 cm; 2 kg
Product Warranty	As per Label
UPC	722301147740
Unit Count	2000.0 gram

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TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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€ 34.98

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews