What is the source of the vitamin c? i am looking for non-gmo; organic; no corn derivatives.

It is made from non-GMO corn. Vitamin C that is not made from corn is very difficult to find and quite a bit more expensive if you are able to find it.

What mesh size is this powder?

It is 40 to 80 mesh. It appears to be a little bit smaller than granulated sugar.

Can this be used as a pre soak for food before dehydrating?

The only information that I have seen is using ascorbic acid to prevent some fruits from browning. I am not sure about other foods besides fruit. For several pounds of fruit, use a large pot and combine 1-2 tsp. ascorbic acid with 1 gallon distilled water and soak the fruit slices for just a few minutes.

What are the recommended steps to use this in a pool to remove staining? I used a differen product and every time I add chlorine the stain comes back.

Doesn’t matter what ascorbic acid you use, though this one does work the fastest:) you need to remove the metals from your water by adding a metal stain blocker afterwards. That will at least slow down the return of the stains. It is recommended that you add ascorbic powder to pool as a preventative measure as well.

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5 lbs Bulk Ascorbic Acid Powder

Product ID: 40942333

Details

Brand
PCNetworx
Item Form
Powder
Item Weight
5.1 pounds
Package Information
Bag
Percentage assay
99.75

🥄2250 mg Vit C per ½ tsp

🧪99.75% USP purity

⚖️5 lbs bulk supply

Description

💥 Elevate your health, kitchen, and pool game with pure power-packed Vitamin C!

PURE POTENT - USP40-tested 99.75% pure L-ascorbic acid ensures maximum efficacy
SMART STORAGE - Resealable stand-up pouch keeps powder fresh and ready for action
BULK POWERHOUSE - Generous 5-pound pouch for long-lasting use and unbeatable value
VERSATILE VITALITY - Delivers 2250 mg of Vitamin C per half teaspoon for daily wellness boost
MULTI TASKING MARVEL - Prevents food browning, enhances bread dough, and removes pool stains effortlessly

This 5-pound bulk L-ascorbic acid powder from PCNetworx offers 99.75% USP-grade purity, delivering 2250 mg of Vitamin C per half teaspoon. Perfect for professional home chefs and wellness enthusiasts alike, it prevents food oxidation, improves bread dough quality, and effectively removes pool stains—all stored in a convenient resealable pouch for lasting freshness.

Specifications

% Assay of Chemical(s)	99.75
ASIN	B005BT9S7G
Brand Name	PCNetworx
Container Type	Bag
Customer Reviews	4.4 4.4 out of 5 stars (51)
Item Form	Powder
Item Weight	5.1 pounds
Manufacturer	PC NetwoRx Inc
Unit Count	5 pound

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